Home / 85,158.20-117,518.36-49,368.96

Finding the Fourth Proportional to 85,158.20, 117,518.36 and 49,368.96

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Solution

The fourth proportional to 85,158.20, 117,518.36 and 49,368.96 is: 68,129.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,158.20 : 117,518.36 = 49,368.96 : x
  2. Step 2: Convert to fraction form
    85,158.20/117,518.36 = 49,368.96/x
  3. Step 3: Cross multiply
    85,158.20x = 117,518.36 × 49,368.96
  4. Step 4: Simplify right side
    85,158.20x = 5,801,759,214.11
  5. Step 5: Solve for x
    x = 5,801,759,214.11/85,158.20
  6. Step 6: Final answer
    x = 68,129.19

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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.