Home / 42,250.56-63,367.76-12,668.40

Finding the Fourth Proportional to 42,250.56, 63,367.76 and 12,668.40

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Solution

The fourth proportional to 42,250.56, 63,367.76 and 12,668.40 is: 19,000.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,250.56 : 63,367.76 = 12,668.40 : x
  2. Step 2: Convert to fraction form
    42,250.56/63,367.76 = 12,668.40/x
  3. Step 3: Cross multiply
    42,250.56x = 63,367.76 × 12,668.40
  4. Step 4: Simplify right side
    42,250.56x = 802,768,130.78
  5. Step 5: Solve for x
    x = 802,768,130.78/42,250.56
  6. Step 6: Final answer
    x = 19,000.18

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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.