Home / 90,794.47-136,192.38-31,630.04

Finding the Fourth Proportional to 90,794.47, 136,192.38 and 31,630.04

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Solution

The fourth proportional to 90,794.47, 136,192.38 and 31,630.04 is: 47,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,794.47 : 136,192.38 = 31,630.04 : x
  2. Step 2: Convert to fraction form
    90,794.47/136,192.38 = 31,630.04/x
  3. Step 3: Cross multiply
    90,794.47x = 136,192.38 × 31,630.04
  4. Step 4: Simplify right side
    90,794.47x = 4,307,770,427.10
  5. Step 5: Solve for x
    x = 4,307,770,427.10/90,794.47
  6. Step 6: Final answer
    x = 47,445.30

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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.