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Finding the Fourth Proportional to 64,952.32, 89,624.56 and 39,445.38

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Solution

The fourth proportional to 64,952.32, 89,624.56 and 39,445.38 is: 54,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,952.32 : 89,624.56 = 39,445.38 : x
  2. Step 2: Convert to fraction form
    64,952.32/89,624.56 = 39,445.38/x
  3. Step 3: Cross multiply
    64,952.32x = 89,624.56 × 39,445.38
  4. Step 4: Simplify right side
    64,952.32x = 3,535,274,826.53
  5. Step 5: Solve for x
    x = 3,535,274,826.53/64,952.32
  6. Step 6: Final answer
    x = 54,428.77

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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.