Home / 84,915.16-127,178.50-40,573.08

Finding the Fourth Proportional to 84,915.16, 127,178.50 and 40,573.08

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Solution

The fourth proportional to 84,915.16, 127,178.50 and 40,573.08 is: 60,766.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,915.16 : 127,178.50 = 40,573.08 : x
  2. Step 2: Convert to fraction form
    84,915.16/127,178.50 = 40,573.08/x
  3. Step 3: Cross multiply
    84,915.16x = 127,178.50 × 40,573.08
  4. Step 4: Simplify right side
    84,915.16x = 5,160,023,454.78
  5. Step 5: Solve for x
    x = 5,160,023,454.78/84,915.16
  6. Step 6: Final answer
    x = 60,766.81

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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.