Home / 78,690.98-108,590.14-44,699.36

Finding the Fourth Proportional to 78,690.98, 108,590.14 and 44,699.36

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Solution

The fourth proportional to 78,690.98, 108,590.14 and 44,699.36 is: 61,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,690.98 : 108,590.14 = 44,699.36 : x
  2. Step 2: Convert to fraction form
    78,690.98/108,590.14 = 44,699.36/x
  3. Step 3: Cross multiply
    78,690.98x = 108,590.14 × 44,699.36
  4. Step 4: Simplify right side
    78,690.98x = 4,853,909,760.31
  5. Step 5: Solve for x
    x = 4,853,909,760.31/78,690.98
  6. Step 6: Final answer
    x = 61,683.18

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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.