Home / 85,701.28-118,253.68-53,847.60

Finding the Fourth Proportional to 85,701.28, 118,253.68 and 53,847.60

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Solution

The fourth proportional to 85,701.28, 118,253.68 and 53,847.60 is: 74,300.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,701.28 : 118,253.68 = 53,847.60 : x
  2. Step 2: Convert to fraction form
    85,701.28/118,253.68 = 53,847.60/x
  3. Step 3: Cross multiply
    85,701.28x = 118,253.68 × 53,847.60
  4. Step 4: Simplify right side
    85,701.28x = 6,367,676,859.17
  5. Step 5: Solve for x
    x = 6,367,676,859.17/85,701.28
  6. Step 6: Final answer
    x = 74,300.84

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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.