Home / 76,617.90-105,730.68-42,624.66

Finding the Fourth Proportional to 76,617.90, 105,730.68 and 42,624.66

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Solution

The fourth proportional to 76,617.90, 105,730.68 and 42,624.66 is: 58,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,617.90 : 105,730.68 = 42,624.66 : x
  2. Step 2: Convert to fraction form
    76,617.90/105,730.68 = 42,624.66/x
  3. Step 3: Cross multiply
    76,617.90x = 105,730.68 × 42,624.66
  4. Step 4: Simplify right side
    76,617.90x = 4,506,734,286.57
  5. Step 5: Solve for x
    x = 4,506,734,286.57/76,617.90
  6. Step 6: Final answer
    x = 58,820.91

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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.