Home / 56,510.89-77,988.66-31,360.39

Finding the Fourth Proportional to 56,510.89, 77,988.66 and 31,360.39

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Solution

The fourth proportional to 56,510.89, 77,988.66 and 31,360.39 is: 43,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,510.89 : 77,988.66 = 31,360.39 : x
  2. Step 2: Convert to fraction form
    56,510.89/77,988.66 = 31,360.39/x
  3. Step 3: Cross multiply
    56,510.89x = 77,988.66 × 31,360.39
  4. Step 4: Simplify right side
    56,510.89x = 2,445,754,793.18
  5. Step 5: Solve for x
    x = 2,445,754,793.18/56,510.89
  6. Step 6: Final answer
    x = 43,279.35

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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.