Home / 51,685.11-71,332.05-31,537.71

Finding the Fourth Proportional to 51,685.11, 71,332.05 and 31,537.71

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Solution

The fourth proportional to 51,685.11, 71,332.05 and 31,537.71 is: 43,526.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,685.11 : 71,332.05 = 31,537.71 : x
  2. Step 2: Convert to fraction form
    51,685.11/71,332.05 = 31,537.71/x
  3. Step 3: Cross multiply
    51,685.11x = 71,332.05 × 31,537.71
  4. Step 4: Simplify right side
    51,685.11x = 2,249,649,506.61
  5. Step 5: Solve for x
    x = 2,249,649,506.61/51,685.11
  6. Step 6: Final answer
    x = 43,526.07

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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.