Home / 42,072.16-63,140.88-15,800.80

Finding the Fourth Proportional to 42,072.16, 63,140.88 and 15,800.80

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Solution

The fourth proportional to 42,072.16, 63,140.88 and 15,800.80 is: 23,713.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,072.16 : 63,140.88 = 15,800.80 : x
  2. Step 2: Convert to fraction form
    42,072.16/63,140.88 = 15,800.80/x
  3. Step 3: Cross multiply
    42,072.16x = 63,140.88 × 15,800.80
  4. Step 4: Simplify right side
    42,072.16x = 997,676,416.70
  5. Step 5: Solve for x
    x = 997,676,416.70/42,072.16
  6. Step 6: Final answer
    x = 23,713.46

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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.