Home / 51,398.30-70,951.53-31,261.65

Finding the Fourth Proportional to 51,398.30, 70,951.53 and 31,261.65

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Solution

The fourth proportional to 51,398.30, 70,951.53 and 31,261.65 is: 43,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,398.30 : 70,951.53 = 31,261.65 : x
  2. Step 2: Convert to fraction form
    51,398.30/70,951.53 = 31,261.65/x
  3. Step 3: Cross multiply
    51,398.30x = 70,951.53 × 31,261.65
  4. Step 4: Simplify right side
    51,398.30x = 2,218,061,897.82
  5. Step 5: Solve for x
    x = 2,218,061,897.82/51,398.30
  6. Step 6: Final answer
    x = 43,154.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.