Home / 85,979.13-118,658.28-47,741.05

Finding the Fourth Proportional to 85,979.13, 118,658.28 and 47,741.05

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Solution

The fourth proportional to 85,979.13, 118,658.28 and 47,741.05 is: 65,886.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,979.13 : 118,658.28 = 47,741.05 : x
  2. Step 2: Convert to fraction form
    85,979.13/118,658.28 = 47,741.05/x
  3. Step 3: Cross multiply
    85,979.13x = 118,658.28 × 47,741.05
  4. Step 4: Simplify right side
    85,979.13x = 5,664,870,878.39
  5. Step 5: Solve for x
    x = 5,664,870,878.39/85,979.13
  6. Step 6: Final answer
    x = 65,886.58

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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.