Home / 85,631.96-118,169.18-47,393.12

Finding the Fourth Proportional to 85,631.96, 118,169.18 and 47,393.12

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Solution

The fourth proportional to 85,631.96, 118,169.18 and 47,393.12 is: 65,400.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,631.96 : 118,169.18 = 47,393.12 : x
  2. Step 2: Convert to fraction form
    85,631.96/118,169.18 = 47,393.12/x
  3. Step 3: Cross multiply
    85,631.96x = 118,169.18 × 47,393.12
  4. Step 4: Simplify right side
    85,631.96x = 5,600,406,128.04
  5. Step 5: Solve for x
    x = 5,600,406,128.04/85,631.96
  6. Step 6: Final answer
    x = 65,400.89

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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.