Home / 87,011,051.49-120,072,854.90-47,852,842.47

Finding the Fourth Proportional to 87,011,051.49, 120,072,854.90 and 47,852,842.47

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Solution

The fourth proportional to 87,011,051.49, 120,072,854.90 and 47,852,842.47 is: 66,035,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,011,051.49 : 120,072,854.90 = 47,852,842.47 : x
  2. Step 2: Convert to fraction form
    87,011,051.49/120,072,854.90 = 47,852,842.47/x
  3. Step 3: Cross multiply
    87,011,051.49x = 120,072,854.90 × 47,852,842.47
  4. Step 4: Simplify right side
    87,011,051.49x = 5,745,827,410,213,603
  5. Step 5: Solve for x
    x = 5,745,827,410,213,603/87,011,051.49
  6. Step 6: Final answer
    x = 66,035,604.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.