Home / 78,701.40-108,610.02-44,708.76

Finding the Fourth Proportional to 78,701.40, 108,610.02 and 44,708.76

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Solution

The fourth proportional to 78,701.40, 108,610.02 and 44,708.76 is: 61,699.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,701.40 : 108,610.02 = 44,708.76 : x
  2. Step 2: Convert to fraction form
    78,701.40/108,610.02 = 44,708.76/x
  3. Step 3: Cross multiply
    78,701.40x = 108,610.02 × 44,708.76
  4. Step 4: Simplify right side
    78,701.40x = 4,855,819,317.78
  5. Step 5: Solve for x
    x = 4,855,819,317.78/78,701.40
  6. Step 6: Final answer
    x = 61,699.27

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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.