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Finding the Fourth Proportional to 85,332.08, 128,088.30 and 47,924.12

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Solution

The fourth proportional to 85,332.08, 128,088.30 and 47,924.12 is: 71,936.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,332.08 : 128,088.30 = 47,924.12 : x
  2. Step 2: Convert to fraction form
    85,332.08/128,088.30 = 47,924.12/x
  3. Step 3: Cross multiply
    85,332.08x = 128,088.30 × 47,924.12
  4. Step 4: Simplify right side
    85,332.08x = 6,138,519,059.80
  5. Step 5: Solve for x
    x = 6,138,519,059.80/85,332.08
  6. Step 6: Final answer
    x = 71,936.83

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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.