Home / 90,969.04-136,426.02-31,793.68

Finding the Fourth Proportional to 90,969.04, 136,426.02 and 31,793.68

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Solution

The fourth proportional to 90,969.04, 136,426.02 and 31,793.68 is: 47,680.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,969.04 : 136,426.02 = 31,793.68 : x
  2. Step 2: Convert to fraction form
    90,969.04/136,426.02 = 31,793.68/x
  3. Step 3: Cross multiply
    90,969.04x = 136,426.02 × 31,793.68
  4. Step 4: Simplify right side
    90,969.04x = 4,337,485,223.55
  5. Step 5: Solve for x
    x = 4,337,485,223.55/90,969.04
  6. Step 6: Final answer
    x = 47,680.89

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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.