Home / 93,921.12-129,614.72-53,635.20

Finding the Fourth Proportional to 93,921.12, 129,614.72 and 53,635.20

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Solution

The fourth proportional to 93,921.12, 129,614.72 and 53,635.20 is: 74,018.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,921.12 : 129,614.72 = 53,635.20 : x
  2. Step 2: Convert to fraction form
    93,921.12/129,614.72 = 53,635.20/x
  3. Step 3: Cross multiply
    93,921.12x = 129,614.72 × 53,635.20
  4. Step 4: Simplify right side
    93,921.12x = 6,951,911,430.14
  5. Step 5: Solve for x
    x = 6,951,911,430.14/93,921.12
  6. Step 6: Final answer
    x = 74,018.62

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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.