Home / 88,389.81-121,974.30-48,103.65

Finding the Fourth Proportional to 88,389.81, 121,974.30 and 48,103.65

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Solution

The fourth proportional to 88,389.81, 121,974.30 and 48,103.65 is: 66,381.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,389.81 : 121,974.30 = 48,103.65 : x
  2. Step 2: Convert to fraction form
    88,389.81/121,974.30 = 48,103.65/x
  3. Step 3: Cross multiply
    88,389.81x = 121,974.30 × 48,103.65
  4. Step 4: Simplify right side
    88,389.81x = 5,867,409,036.20
  5. Step 5: Solve for x
    x = 5,867,409,036.20/88,389.81
  6. Step 6: Final answer
    x = 66,381.06

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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.