Home / 56,122.76-77,449.14-30,973.80

Finding the Fourth Proportional to 56,122.76, 77,449.14 and 30,973.80

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Solution

The fourth proportional to 56,122.76, 77,449.14 and 30,973.80 is: 42,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,122.76 : 77,449.14 = 30,973.80 : x
  2. Step 2: Convert to fraction form
    56,122.76/77,449.14 = 30,973.80/x
  3. Step 3: Cross multiply
    56,122.76x = 77,449.14 × 30,973.80
  4. Step 4: Simplify right side
    56,122.76x = 2,398,894,172.53
  5. Step 5: Solve for x
    x = 2,398,894,172.53/56,122.76
  6. Step 6: Final answer
    x = 42,743.70

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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.