Home / 39,129.76-53,990.02-26,406.54

Finding the Fourth Proportional to 39,129.76, 53,990.02 and 26,406.54

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Solution

The fourth proportional to 39,129.76, 53,990.02 and 26,406.54 is: 36,434.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,129.76 : 53,990.02 = 26,406.54 : x
  2. Step 2: Convert to fraction form
    39,129.76/53,990.02 = 26,406.54/x
  3. Step 3: Cross multiply
    39,129.76x = 53,990.02 × 26,406.54
  4. Step 4: Simplify right side
    39,129.76x = 1,425,689,976.34
  5. Step 5: Solve for x
    x = 1,425,689,976.34/39,129.76
  6. Step 6: Final answer
    x = 36,434.93

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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.