Home / 87,509.04-131,066.52-61,330.68

Finding the Fourth Proportional to 87,509.04, 131,066.52 and 61,330.68

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Solution

The fourth proportional to 87,509.04, 131,066.52 and 61,330.68 is: 91,857.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,509.04 : 131,066.52 = 61,330.68 : x
  2. Step 2: Convert to fraction form
    87,509.04/131,066.52 = 61,330.68/x
  3. Step 3: Cross multiply
    87,509.04x = 131,066.52 × 61,330.68
  4. Step 4: Simplify right side
    87,509.04x = 8,038,398,796.83
  5. Step 5: Solve for x
    x = 8,038,398,796.83/87,509.04
  6. Step 6: Final answer
    x = 91,857.92

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1.5x scale

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.