Home / 90,782.60-136,177.54-31,624.25

Finding the Fourth Proportional to 90,782.60, 136,177.54 and 31,624.25

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Solution

The fourth proportional to 90,782.60, 136,177.54 and 31,624.25 is: 47,437.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,782.60 : 136,177.54 = 31,624.25 : x
  2. Step 2: Convert to fraction form
    90,782.60/136,177.54 = 31,624.25/x
  3. Step 3: Cross multiply
    90,782.60x = 136,177.54 × 31,624.25
  4. Step 4: Simplify right side
    90,782.60x = 4,306,511,809.40
  5. Step 5: Solve for x
    x = 4,306,511,809.40/90,782.60
  6. Step 6: Final answer
    x = 47,437.64

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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.