Home / 56,680.88-78,220.07-31,530.38

Finding the Fourth Proportional to 56,680.88, 78,220.07 and 31,530.38

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Solution

The fourth proportional to 56,680.88, 78,220.07 and 31,530.38 is: 43,512.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,680.88 : 78,220.07 = 31,530.38 : x
  2. Step 2: Convert to fraction form
    56,680.88/78,220.07 = 31,530.38/x
  3. Step 3: Cross multiply
    56,680.88x = 78,220.07 × 31,530.38
  4. Step 4: Simplify right side
    56,680.88x = 2,466,307,981.97
  5. Step 5: Solve for x
    x = 2,466,307,981.97/56,680.88
  6. Step 6: Final answer
    x = 43,512.17

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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.