Home / 86,980.19-120,032.66-49,261.73

Finding the Fourth Proportional to 86,980.19, 120,032.66 and 49,261.73

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Solution

The fourth proportional to 86,980.19, 120,032.66 and 49,261.73 is: 67,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,980.19 : 120,032.66 = 49,261.73 : x
  2. Step 2: Convert to fraction form
    86,980.19/120,032.66 = 49,261.73/x
  3. Step 3: Cross multiply
    86,980.19x = 120,032.66 × 49,261.73
  4. Step 4: Simplify right side
    86,980.19x = 5,913,016,188.02
  5. Step 5: Solve for x
    x = 5,913,016,188.02/86,980.19
  6. Step 6: Final answer
    x = 67,981.18

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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.