Home / 90,795.47-136,193.88-31,631.04

Finding the Fourth Proportional to 90,795.47, 136,193.88 and 31,631.04

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Solution

The fourth proportional to 90,795.47, 136,193.88 and 31,631.04 is: 47,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,795.47 : 136,193.88 = 31,631.04 : x
  2. Step 2: Convert to fraction form
    90,795.47/136,193.88 = 31,631.04/x
  3. Step 3: Cross multiply
    90,795.47x = 136,193.88 × 31,631.04
  4. Step 4: Simplify right side
    90,795.47x = 4,307,954,066.04
  5. Step 5: Solve for x
    x = 4,307,954,066.04/90,795.47
  6. Step 6: Final answer
    x = 47,446.80

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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.