Home / 81,285.19-112,191.12-49,464.34

Finding the Fourth Proportional to 81,285.19, 112,191.12 and 49,464.34

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Solution

The fourth proportional to 81,285.19, 112,191.12 and 49,464.34 is: 68,271.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,285.19 : 112,191.12 = 49,464.34 : x
  2. Step 2: Convert to fraction form
    81,285.19/112,191.12 = 49,464.34/x
  3. Step 3: Cross multiply
    81,285.19x = 112,191.12 × 49,464.34
  4. Step 4: Simplify right side
    81,285.19x = 5,549,459,704.66
  5. Step 5: Solve for x
    x = 5,549,459,704.66/81,285.19
  6. Step 6: Final answer
    x = 68,271.47

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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.