Home / 51,387.01-70,925.52-31,239.63

Finding the Fourth Proportional to 51,387.01, 70,925.52 and 31,239.63

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Solution

The fourth proportional to 51,387.01, 70,925.52 and 31,239.63 is: 43,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387.01 : 70,925.52 = 31,239.63 : x
  2. Step 2: Convert to fraction form
    51,387.01/70,925.52 = 31,239.63/x
  3. Step 3: Cross multiply
    51,387.01x = 70,925.52 × 31,239.63
  4. Step 4: Simplify right side
    51,387.01x = 2,215,687,002.36
  5. Step 5: Solve for x
    x = 2,215,687,002.36/51,387.01
  6. Step 6: Final answer
    x = 43,117.65

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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.