Home / 81,124.13-121,446.59-59,923.40

Finding the Fourth Proportional to 81,124.13, 121,446.59 and 59,923.40

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Solution

The fourth proportional to 81,124.13, 121,446.59 and 59,923.40 is: 89,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,124.13 : 121,446.59 = 59,923.40 : x
  2. Step 2: Convert to fraction form
    81,124.13/121,446.59 = 59,923.40/x
  3. Step 3: Cross multiply
    81,124.13x = 121,446.59 × 59,923.40
  4. Step 4: Simplify right side
    81,124.13x = 7,277,492,021.43
  5. Step 5: Solve for x
    x = 7,277,492,021.43/81,124.13
  6. Step 6: Final answer
    x = 89,708.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.