Home / 83,865.60-125,798.40-54,316.80

Finding the Fourth Proportional to 83,865.60, 125,798.40 and 54,316.80

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Solution

The fourth proportional to 83,865.60, 125,798.40 and 54,316.80 is: 81,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,865.60 : 125,798.40 = 54,316.80 : x
  2. Step 2: Convert to fraction form
    83,865.60/125,798.40 = 54,316.80/x
  3. Step 3: Cross multiply
    83,865.60x = 125,798.40 × 54,316.80
  4. Step 4: Simplify right side
    83,865.60x = 6,832,966,533.12
  5. Step 5: Solve for x
    x = 6,832,966,533.12/83,865.60
  6. Step 6: Final answer
    x = 81,475.20

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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.