Home / 86,151.14-118,888.65-47,909.86

Finding the Fourth Proportional to 86,151.14, 118,888.65 and 47,909.86

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Solution

The fourth proportional to 86,151.14, 118,888.65 and 47,909.86 is: 66,115.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,151.14 : 118,888.65 = 47,909.86 : x
  2. Step 2: Convert to fraction form
    86,151.14/118,888.65 = 47,909.86/x
  3. Step 3: Cross multiply
    86,151.14x = 118,888.65 × 47,909.86
  4. Step 4: Simplify right side
    86,151.14x = 5,695,938,100.21
  5. Step 5: Solve for x
    x = 5,695,938,100.21/86,151.14
  6. Step 6: Final answer
    x = 66,115.64

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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.