Home / 53,870.41-80,778.58-31,388.36

Finding the Fourth Proportional to 53,870.41, 80,778.58 and 31,388.36

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Solution

The fourth proportional to 53,870.41, 80,778.58 and 31,388.36 is: 47,066.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,870.41 : 80,778.58 = 31,388.36 : x
  2. Step 2: Convert to fraction form
    53,870.41/80,778.58 = 31,388.36/x
  3. Step 3: Cross multiply
    53,870.41x = 80,778.58 × 31,388.36
  4. Step 4: Simplify right side
    53,870.41x = 2,535,506,666.97
  5. Step 5: Solve for x
    x = 2,535,506,666.97/53,870.41
  6. Step 6: Final answer
    x = 47,066.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.