Home / 56,919.47-78,543.27-31,424.22

Finding the Fourth Proportional to 56,919.47, 78,543.27 and 31,424.22

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Solution

The fourth proportional to 56,919.47, 78,543.27 and 31,424.22 is: 43,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919.47 : 78,543.27 = 31,424.22 : x
  2. Step 2: Convert to fraction form
    56,919.47/78,543.27 = 31,424.22/x
  3. Step 3: Cross multiply
    56,919.47x = 78,543.27 × 31,424.22
  4. Step 4: Simplify right side
    56,919.47x = 2,468,160,996.00
  5. Step 5: Solve for x
    x = 2,468,160,996.00/56,919.47
  6. Step 6: Final answer
    x = 43,362.34

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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.