Home / 56,838.18-78,433.29-31,343.34

Finding the Fourth Proportional to 56,838.18, 78,433.29 and 31,343.34

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Solution

The fourth proportional to 56,838.18, 78,433.29 and 31,343.34 is: 43,251.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,838.18 : 78,433.29 = 31,343.34 : x
  2. Step 2: Convert to fraction form
    56,838.18/78,433.29 = 31,343.34/x
  3. Step 3: Cross multiply
    56,838.18x = 78,433.29 × 31,343.34
  4. Step 4: Simplify right side
    56,838.18x = 2,458,361,275.79
  5. Step 5: Solve for x
    x = 2,458,361,275.79/56,838.18
  6. Step 6: Final answer
    x = 43,251.94

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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.