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Finding the Fourth Proportional to 64,371.80, 96,557.70 and 55,731.80

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Solution

The fourth proportional to 64,371.80, 96,557.70 and 55,731.80 is: 83,597.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,371.80 : 96,557.70 = 55,731.80 : x
  2. Step 2: Convert to fraction form
    64,371.80/96,557.70 = 55,731.80/x
  3. Step 3: Cross multiply
    64,371.80x = 96,557.70 × 55,731.80
  4. Step 4: Simplify right side
    64,371.80x = 5,381,334,424.86
  5. Step 5: Solve for x
    x = 5,381,334,424.86/64,371.80
  6. Step 6: Final answer
    x = 83,597.70

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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.