Home / 71,099.04-98,072.20-42,398.60

Finding the Fourth Proportional to 71,099.04, 98,072.20 and 42,398.60

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Solution

The fourth proportional to 71,099.04, 98,072.20 and 42,398.60 is: 58,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,099.04 : 98,072.20 = 42,398.60 : x
  2. Step 2: Convert to fraction form
    71,099.04/98,072.20 = 42,398.60/x
  3. Step 3: Cross multiply
    71,099.04x = 98,072.20 × 42,398.60
  4. Step 4: Simplify right side
    71,099.04x = 4,158,123,978.92
  5. Step 5: Solve for x
    x = 4,158,123,978.92/71,099.04
  6. Step 6: Final answer
    x = 58,483.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.