Home / 91,248.39-136,868.46-31,282.20

Finding the Fourth Proportional to 91,248.39, 136,868.46 and 31,282.20

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Solution

The fourth proportional to 91,248.39, 136,868.46 and 31,282.20 is: 46,921.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,248.39 : 136,868.46 = 31,282.20 : x
  2. Step 2: Convert to fraction form
    91,248.39/136,868.46 = 31,282.20/x
  3. Step 3: Cross multiply
    91,248.39x = 136,868.46 × 31,282.20
  4. Step 4: Simplify right side
    91,248.39x = 4,281,546,539.41
  5. Step 5: Solve for x
    x = 4,281,546,539.41/91,248.39
  6. Step 6: Final answer
    x = 46,921.89

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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.