Home / 76,165.17-105,107.85-42,631.17

Finding the Fourth Proportional to 76,165.17, 105,107.85 and 42,631.17

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Solution

The fourth proportional to 76,165.17, 105,107.85 and 42,631.17 is: 58,830.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,165.17 : 105,107.85 = 42,631.17 : x
  2. Step 2: Convert to fraction form
    76,165.17/105,107.85 = 42,631.17/x
  3. Step 3: Cross multiply
    76,165.17x = 105,107.85 × 42,631.17
  4. Step 4: Simplify right side
    76,165.17x = 4,480,870,621.68
  5. Step 5: Solve for x
    x = 4,480,870,621.68/76,165.17
  6. Step 6: Final answer
    x = 58,830.97

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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.