Home / 90,142.34-124,394.12-49,855.10

Finding the Fourth Proportional to 90,142.34, 124,394.12 and 49,855.10

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Solution

The fourth proportional to 90,142.34, 124,394.12 and 49,855.10 is: 68,798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,142.34 : 124,394.12 = 49,855.10 : x
  2. Step 2: Convert to fraction form
    90,142.34/124,394.12 = 49,855.10/x
  3. Step 3: Cross multiply
    90,142.34x = 124,394.12 × 49,855.10
  4. Step 4: Simplify right side
    90,142.34x = 6,201,681,292.01
  5. Step 5: Solve for x
    x = 6,201,681,292.01/90,142.34
  6. Step 6: Final answer
    x = 68,798.76

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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.