Home / 89,618.50-134,428.02-26,439.40

Finding the Fourth Proportional to 89,618.50, 134,428.02 and 26,439.40

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Solution

The fourth proportional to 89,618.50, 134,428.02 and 26,439.40 is: 39,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,618.50 : 134,428.02 = 26,439.40 : x
  2. Step 2: Convert to fraction form
    89,618.50/134,428.02 = 26,439.40/x
  3. Step 3: Cross multiply
    89,618.50x = 134,428.02 × 26,439.40
  4. Step 4: Simplify right side
    89,618.50x = 3,554,196,191.99
  5. Step 5: Solve for x
    x = 3,554,196,191.99/89,618.50
  6. Step 6: Final answer
    x = 39,659.18

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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.