Home / 78,432.05-117,666.52-25,841.53

Finding the Fourth Proportional to 78,432.05, 117,666.52 and 25,841.53

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Solution

The fourth proportional to 78,432.05, 117,666.52 and 25,841.53 is: 38,768.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,432.05 : 117,666.52 = 25,841.53 : x
  2. Step 2: Convert to fraction form
    78,432.05/117,666.52 = 25,841.53/x
  3. Step 3: Cross multiply
    78,432.05x = 117,666.52 × 25,841.53
  4. Step 4: Simplify right side
    78,432.05x = 3,040,683,134.41
  5. Step 5: Solve for x
    x = 3,040,683,134.41/78,432.05
  6. Step 6: Final answer
    x = 38,768.38

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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.