Home / 76,299.71-105,289.30-42,306.17

Finding the Fourth Proportional to 76,299.71, 105,289.30 and 42,306.17

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Solution

The fourth proportional to 76,299.71, 105,289.30 and 42,306.17 is: 58,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,299.71 : 105,289.30 = 42,306.17 : x
  2. Step 2: Convert to fraction form
    76,299.71/105,289.30 = 42,306.17/x
  3. Step 3: Cross multiply
    76,299.71x = 105,289.30 × 42,306.17
  4. Step 4: Simplify right side
    76,299.71x = 4,454,386,551.42
  5. Step 5: Solve for x
    x = 4,454,386,551.42/76,299.71
  6. Step 6: Final answer
    x = 58,380.13

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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.