Home / 56,881.17-78,494.76-31,386.56

Finding the Fourth Proportional to 56,881.17, 78,494.76 and 31,386.56

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Solution

The fourth proportional to 56,881.17, 78,494.76 and 31,386.56 is: 43,312.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,881.17 : 78,494.76 = 31,386.56 : x
  2. Step 2: Convert to fraction form
    56,881.17/78,494.76 = 31,386.56/x
  3. Step 3: Cross multiply
    56,881.17x = 78,494.76 × 31,386.56
  4. Step 4: Simplify right side
    56,881.17x = 2,463,680,101.95
  5. Step 5: Solve for x
    x = 2,463,680,101.95/56,881.17
  6. Step 6: Final answer
    x = 43,312.75

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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.