Home / 90,271.46-124,581.58-49,988.95

Finding the Fourth Proportional to 90,271.46, 124,581.58 and 49,988.95

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Solution

The fourth proportional to 90,271.46, 124,581.58 and 49,988.95 is: 68,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,271.46 : 124,581.58 = 49,988.95 : x
  2. Step 2: Convert to fraction form
    90,271.46/124,581.58 = 49,988.95/x
  3. Step 3: Cross multiply
    90,271.46x = 124,581.58 × 49,988.95
  4. Step 4: Simplify right side
    90,271.46x = 6,227,701,937.11
  5. Step 5: Solve for x
    x = 6,227,701,937.11/90,271.46
  6. Step 6: Final answer
    x = 68,988.60

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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.