Home / 85,764.13-118,354.50-52,230.13

Finding the Fourth Proportional to 85,764.13, 118,354.50 and 52,230.13

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Solution

The fourth proportional to 85,764.13, 118,354.50 and 52,230.13 is: 72,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,764.13 : 118,354.50 = 52,230.13 : x
  2. Step 2: Convert to fraction form
    85,764.13/118,354.50 = 52,230.13/x
  3. Step 3: Cross multiply
    85,764.13x = 118,354.50 × 52,230.13
  4. Step 4: Simplify right side
    85,764.13x = 6,181,670,921.09
  5. Step 5: Solve for x
    x = 6,181,670,921.09/85,764.13
  6. Step 6: Final answer
    x = 72,077.58

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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.