Home / 51,520.40-77,280.60-16,461.20

Finding the Fourth Proportional to 51,520.40, 77,280.60 and 16,461.20

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Solution

The fourth proportional to 51,520.40, 77,280.60 and 16,461.20 is: 24,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,520.40 : 77,280.60 = 16,461.20 : x
  2. Step 2: Convert to fraction form
    51,520.40/77,280.60 = 16,461.20/x
  3. Step 3: Cross multiply
    51,520.40x = 77,280.60 × 16,461.20
  4. Step 4: Simplify right side
    51,520.40x = 1,272,131,412.72
  5. Step 5: Solve for x
    x = 1,272,131,412.72/51,520.40
  6. Step 6: Final answer
    x = 24,691.80

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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.