Home / 71,302.18-107,147.14-38,045.74

Finding the Fourth Proportional to 71,302.18, 107,147.14 and 38,045.74

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Solution

The fourth proportional to 71,302.18, 107,147.14 and 38,045.74 is: 57,172.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,302.18 : 107,147.14 = 38,045.74 : x
  2. Step 2: Convert to fraction form
    71,302.18/107,147.14 = 38,045.74/x
  3. Step 3: Cross multiply
    71,302.18x = 107,147.14 × 38,045.74
  4. Step 4: Simplify right side
    71,302.18x = 4,076,492,230.18
  5. Step 5: Solve for x
    x = 4,076,492,230.18/71,302.18
  6. Step 6: Final answer
    x = 57,172.06

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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.