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Finding the Fourth Proportional to 64,657.52, 96,997.44 and 20,275.76

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Solution

The fourth proportional to 64,657.52, 96,997.44 and 20,275.76 is: 30,417.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,657.52 : 96,997.44 = 20,275.76 : x
  2. Step 2: Convert to fraction form
    64,657.52/96,997.44 = 20,275.76/x
  3. Step 3: Cross multiply
    64,657.52x = 96,997.44 × 20,275.76
  4. Step 4: Simplify right side
    64,657.52x = 1,966,696,814.05
  5. Step 5: Solve for x
    x = 1,966,696,814.05/64,657.52
  6. Step 6: Final answer
    x = 30,417.14

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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.