Home / 83,686.56-125,551.08-38,740.32

Finding the Fourth Proportional to 83,686.56, 125,551.08 and 38,740.32

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Solution

The fourth proportional to 83,686.56, 125,551.08 and 38,740.32 is: 58,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,686.56 : 125,551.08 = 38,740.32 : x
  2. Step 2: Convert to fraction form
    83,686.56/125,551.08 = 38,740.32/x
  3. Step 3: Cross multiply
    83,686.56x = 125,551.08 × 38,740.32
  4. Step 4: Simplify right side
    83,686.56x = 4,863,889,015.55
  5. Step 5: Solve for x
    x = 4,863,889,015.55/83,686.56
  6. Step 6: Final answer
    x = 58,120.31

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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.