Home / 87,051.81-120,097.59-64,444.92

Finding the Fourth Proportional to 87,051.81, 120,097.59 and 64,444.92

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Solution

The fourth proportional to 87,051.81, 120,097.59 and 64,444.92 is: 88,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,051.81 : 120,097.59 = 64,444.92 : x
  2. Step 2: Convert to fraction form
    87,051.81/120,097.59 = 64,444.92/x
  3. Step 3: Cross multiply
    87,051.81x = 120,097.59 × 64,444.92
  4. Step 4: Simplify right side
    87,051.81x = 7,739,678,887.71
  5. Step 5: Solve for x
    x = 7,739,678,887.71/87,051.81
  6. Step 6: Final answer
    x = 88,908.88

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1.5x scale

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.