Home / 76,162.47-105,107.48-42,170.95

Finding the Fourth Proportional to 76,162.47, 105,107.48 and 42,170.95

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Solution

The fourth proportional to 76,162.47, 105,107.48 and 42,170.95 is: 58,197.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,162.47 : 105,107.48 = 42,170.95 : x
  2. Step 2: Convert to fraction form
    76,162.47/105,107.48 = 42,170.95/x
  3. Step 3: Cross multiply
    76,162.47x = 105,107.48 × 42,170.95
  4. Step 4: Simplify right side
    76,162.47x = 4,432,482,283.71
  5. Step 5: Solve for x
    x = 4,432,482,283.71/76,162.47
  6. Step 6: Final answer
    x = 58,197.72

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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.