Home / 74,420.10-111,630.15-42,927.30

Finding the Fourth Proportional to 74,420.10, 111,630.15 and 42,927.30

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Solution

The fourth proportional to 74,420.10, 111,630.15 and 42,927.30 is: 64,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,420.10 : 111,630.15 = 42,927.30 : x
  2. Step 2: Convert to fraction form
    74,420.10/111,630.15 = 42,927.30/x
  3. Step 3: Cross multiply
    74,420.10x = 111,630.15 × 42,927.30
  4. Step 4: Simplify right side
    74,420.10x = 4,791,980,938.10
  5. Step 5: Solve for x
    x = 4,791,980,938.10/74,420.10
  6. Step 6: Final answer
    x = 64,390.95

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Similar ratio
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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.