Home / 85,740.60-118,319.28-47,498.58

Finding the Fourth Proportional to 85,740.60, 118,319.28 and 47,498.58

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Solution

The fourth proportional to 85,740.60, 118,319.28 and 47,498.58 is: 65,546.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,740.60 : 118,319.28 = 47,498.58 : x
  2. Step 2: Convert to fraction form
    85,740.60/118,319.28 = 47,498.58/x
  3. Step 3: Cross multiply
    85,740.60x = 118,319.28 × 47,498.58
  4. Step 4: Simplify right side
    85,740.60x = 5,619,997,786.62
  5. Step 5: Solve for x
    x = 5,619,997,786.62/85,740.60
  6. Step 6: Final answer
    x = 65,546.52

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1.5x scale

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.