Home / 90,878.71-125,517.59-60,611.44

Finding the Fourth Proportional to 90,878.71, 125,517.59 and 60,611.44

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Solution

The fourth proportional to 90,878.71, 125,517.59 and 60,611.44 is: 83,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,878.71 : 125,517.59 = 60,611.44 : x
  2. Step 2: Convert to fraction form
    90,878.71/125,517.59 = 60,611.44/x
  3. Step 3: Cross multiply
    90,878.71x = 125,517.59 × 60,611.44
  4. Step 4: Simplify right side
    90,878.71x = 7,607,801,875.23
  5. Step 5: Solve for x
    x = 7,607,801,875.23/90,878.71
  6. Step 6: Final answer
    x = 83,713.80

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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.