Home / 85,984.40-118,657.86-47,743.76

Finding the Fourth Proportional to 85,984.40, 118,657.86 and 47,743.76

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Solution

The fourth proportional to 85,984.40, 118,657.86 and 47,743.76 is: 65,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,984.40 : 118,657.86 = 47,743.76 : x
  2. Step 2: Convert to fraction form
    85,984.40/118,657.86 = 47,743.76/x
  3. Step 3: Cross multiply
    85,984.40x = 118,657.86 × 47,743.76
  4. Step 4: Simplify right side
    85,984.40x = 5,665,172,507.56
  5. Step 5: Solve for x
    x = 5,665,172,507.56/85,984.40
  6. Step 6: Final answer
    x = 65,886.05

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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.