Home / 90,915.54-136,329.57-38,296.32

Finding the Fourth Proportional to 90,915.54, 136,329.57 and 38,296.32

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Solution

The fourth proportional to 90,915.54, 136,329.57 and 38,296.32 is: 57,426.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,915.54 : 136,329.57 = 38,296.32 : x
  2. Step 2: Convert to fraction form
    90,915.54/136,329.57 = 38,296.32/x
  3. Step 3: Cross multiply
    90,915.54x = 136,329.57 × 38,296.32
  4. Step 4: Simplify right side
    90,915.54x = 5,220,920,838.18
  5. Step 5: Solve for x
    x = 5,220,920,838.18/90,915.54
  6. Step 6: Final answer
    x = 57,426.06

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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.