Home / 56,190.24-77,543.52-31,039.20

Finding the Fourth Proportional to 56,190.24, 77,543.52 and 31,039.20

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Solution

The fourth proportional to 56,190.24, 77,543.52 and 31,039.20 is: 42,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,190.24 : 77,543.52 = 31,039.20 : x
  2. Step 2: Convert to fraction form
    56,190.24/77,543.52 = 31,039.20/x
  3. Step 3: Cross multiply
    56,190.24x = 77,543.52 × 31,039.20
  4. Step 4: Simplify right side
    56,190.24x = 2,406,888,825.98
  5. Step 5: Solve for x
    x = 2,406,888,825.98/56,190.24
  6. Step 6: Final answer
    x = 42,834.64

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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.