Home / 87,497.79-120,756.02-53,528.90

Finding the Fourth Proportional to 87,497.79, 120,756.02 and 53,528.90

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Solution

The fourth proportional to 87,497.79, 120,756.02 and 53,528.90 is: 73,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,497.79 : 120,756.02 = 53,528.90 : x
  2. Step 2: Convert to fraction form
    87,497.79/120,756.02 = 53,528.90/x
  3. Step 3: Cross multiply
    87,497.79x = 120,756.02 × 53,528.90
  4. Step 4: Simplify right side
    87,497.79x = 6,463,936,726.81
  5. Step 5: Solve for x
    x = 6,463,936,726.81/87,497.79
  6. Step 6: Final answer
    x = 73,875.43

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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.