Home / 78,861.28-118,294.56-25,551.76

Finding the Fourth Proportional to 78,861.28, 118,294.56 and 25,551.76

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Solution

The fourth proportional to 78,861.28, 118,294.56 and 25,551.76 is: 38,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,861.28 : 118,294.56 = 25,551.76 : x
  2. Step 2: Convert to fraction form
    78,861.28/118,294.56 = 25,551.76/x
  3. Step 3: Cross multiply
    78,861.28x = 118,294.56 × 25,551.76
  4. Step 4: Simplify right side
    78,861.28x = 3,022,634,206.43
  5. Step 5: Solve for x
    x = 3,022,634,206.43/78,861.28
  6. Step 6: Final answer
    x = 38,328.50

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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.