Home / 55,301.60-76,312.92-31,424.96

Finding the Fourth Proportional to 55,301.60, 76,312.92 and 31,424.96

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Solution

The fourth proportional to 55,301.60, 76,312.92 and 31,424.96 is: 43,364.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,301.60 : 76,312.92 = 31,424.96 : x
  2. Step 2: Convert to fraction form
    55,301.60/76,312.92 = 31,424.96/x
  3. Step 3: Cross multiply
    55,301.60x = 76,312.92 × 31,424.96
  4. Step 4: Simplify right side
    55,301.60x = 2,398,130,458.48
  5. Step 5: Solve for x
    x = 2,398,130,458.48/55,301.60
  6. Step 6: Final answer
    x = 43,364.58

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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.