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Finding the Fourth Proportional to 64,865.53, 89,523.33 and 38,018.74

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Solution

The fourth proportional to 64,865.53, 89,523.33 and 38,018.74 is: 52,471.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,865.53 : 89,523.33 = 38,018.74 : x
  2. Step 2: Convert to fraction form
    64,865.53/89,523.33 = 38,018.74/x
  3. Step 3: Cross multiply
    64,865.53x = 89,523.33 × 38,018.74
  4. Step 4: Simplify right side
    64,865.53x = 3,403,564,260.47
  5. Step 5: Solve for x
    x = 3,403,564,260.47/64,865.53
  6. Step 6: Final answer
    x = 52,471.07

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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.