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Finding the Fourth Proportional to 56,343.68, 77,751.88 and 30,849.58

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Solution

The fourth proportional to 56,343.68, 77,751.88 and 30,849.58 is: 42,571.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,343.68 : 77,751.88 = 30,849.58 : x
  2. Step 2: Convert to fraction form
    56,343.68/77,751.88 = 30,849.58/x
  3. Step 3: Cross multiply
    56,343.68x = 77,751.88 × 30,849.58
  4. Step 4: Simplify right side
    56,343.68x = 2,398,612,862.28
  5. Step 5: Solve for x
    x = 2,398,612,862.28/56,343.68
  6. Step 6: Final answer
    x = 42,571.11

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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.