Home / 89,421.80-123,394.74-49,133.48

Finding the Fourth Proportional to 89,421.80, 123,394.74 and 49,133.48

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Solution

The fourth proportional to 89,421.80, 123,394.74 and 49,133.48 is: 67,800.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,421.80 : 123,394.74 = 49,133.48 : x
  2. Step 2: Convert to fraction form
    89,421.80/123,394.74 = 49,133.48/x
  3. Step 3: Cross multiply
    89,421.80x = 123,394.74 × 49,133.48
  4. Step 4: Simplify right side
    89,421.80x = 6,062,812,989.90
  5. Step 5: Solve for x
    x = 6,062,812,989.90/89,421.80
  6. Step 6: Final answer
    x = 67,800.17

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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.