Home / 78,948.66-118,430.87-22,790.13

Finding the Fourth Proportional to 78,948.66, 118,430.87 and 22,790.13

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Solution

The fourth proportional to 78,948.66, 118,430.87 and 22,790.13 is: 34,187.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,948.66 : 118,430.87 = 22,790.13 : x
  2. Step 2: Convert to fraction form
    78,948.66/118,430.87 = 22,790.13/x
  3. Step 3: Cross multiply
    78,948.66x = 118,430.87 × 22,790.13
  4. Step 4: Simplify right side
    78,948.66x = 2,699,054,923.31
  5. Step 5: Solve for x
    x = 2,699,054,923.31/78,948.66
  6. Step 6: Final answer
    x = 34,187.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.