Home / 90,734.59-125,220.75-54,437.40

Finding the Fourth Proportional to 90,734.59, 125,220.75 and 54,437.40

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Solution

The fourth proportional to 90,734.59, 125,220.75 and 54,437.40 is: 75,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,734.59 : 125,220.75 = 54,437.40 : x
  2. Step 2: Convert to fraction form
    90,734.59/125,220.75 = 54,437.40/x
  3. Step 3: Cross multiply
    90,734.59x = 125,220.75 × 54,437.40
  4. Step 4: Simplify right side
    90,734.59x = 6,816,692,056.05
  5. Step 5: Solve for x
    x = 6,816,692,056.05/90,734.59
  6. Step 6: Final answer
    x = 75,127.82

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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.