Home / 83,737.12-115,563.60-47,938.32

Finding the Fourth Proportional to 83,737.12, 115,563.60 and 47,938.32

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Solution

The fourth proportional to 83,737.12, 115,563.60 and 47,938.32 is: 66,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,737.12 : 115,563.60 = 47,938.32 : x
  2. Step 2: Convert to fraction form
    83,737.12/115,563.60 = 47,938.32/x
  3. Step 3: Cross multiply
    83,737.12x = 115,563.60 × 47,938.32
  4. Step 4: Simplify right side
    83,737.12x = 5,539,924,837.15
  5. Step 5: Solve for x
    x = 5,539,924,837.15/83,737.12
  6. Step 6: Final answer
    x = 66,158.53

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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.