Home / 64,655.20-97,084.80-38,476.78

Finding the Fourth Proportional to 64,655.20, 97,084.80 and 38,476.78

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Solution

The fourth proportional to 64,655.20, 97,084.80 and 38,476.78 is: 57,775.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,655.20 : 97,084.80 = 38,476.78 : x
  2. Step 2: Convert to fraction form
    64,655.20/97,084.80 = 38,476.78/x
  3. Step 3: Cross multiply
    64,655.20x = 97,084.80 × 38,476.78
  4. Step 4: Simplify right side
    64,655.20x = 3,735,510,490.94
  5. Step 5: Solve for x
    x = 3,735,510,490.94/64,655.20
  6. Step 6: Final answer
    x = 57,775.87

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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.