Home / 89,623.40-134,435.10-66,295.40

Finding the Fourth Proportional to 89,623.40, 134,435.10 and 66,295.40

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Solution

The fourth proportional to 89,623.40, 134,435.10 and 66,295.40 is: 99,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,623.40 : 134,435.10 = 66,295.40 : x
  2. Step 2: Convert to fraction form
    89,623.40/134,435.10 = 66,295.40/x
  3. Step 3: Cross multiply
    89,623.40x = 134,435.10 × 66,295.40
  4. Step 4: Simplify right side
    89,623.40x = 8,912,428,728.54
  5. Step 5: Solve for x
    x = 8,912,428,728.54/89,623.40
  6. Step 6: Final answer
    x = 99,443.10

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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.