Home / 76,297.70-105,292.08-42,307.61

Finding the Fourth Proportional to 76,297.70, 105,292.08 and 42,307.61

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Solution

The fourth proportional to 76,297.70, 105,292.08 and 42,307.61 is: 58,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,297.70 : 105,292.08 = 42,307.61 : x
  2. Step 2: Convert to fraction form
    76,297.70/105,292.08 = 42,307.61/x
  3. Step 3: Cross multiply
    76,297.70x = 105,292.08 × 42,307.61
  4. Step 4: Simplify right side
    76,297.70x = 4,454,656,519.96
  5. Step 5: Solve for x
    x = 4,454,656,519.96/76,297.70
  6. Step 6: Final answer
    x = 58,385.20

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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.