Home / 90,755.42-136,133.82-31,590.95

Finding the Fourth Proportional to 90,755.42, 136,133.82 and 31,590.95

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Solution

The fourth proportional to 90,755.42, 136,133.82 and 31,590.95 is: 47,386.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,755.42 : 136,133.82 = 31,590.95 : x
  2. Step 2: Convert to fraction form
    90,755.42/136,133.82 = 31,590.95/x
  3. Step 3: Cross multiply
    90,755.42x = 136,133.82 × 31,590.95
  4. Step 4: Simplify right side
    90,755.42x = 4,300,596,020.26
  5. Step 5: Solve for x
    x = 4,300,596,020.26/90,755.42
  6. Step 6: Final answer
    x = 47,386.66

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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.