Home / 76,432.17-105,474.36-42,439.77

Finding the Fourth Proportional to 76,432.17, 105,474.36 and 42,439.77

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Solution

The fourth proportional to 76,432.17, 105,474.36 and 42,439.77 is: 58,565.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,432.17 : 105,474.36 = 42,439.77 : x
  2. Step 2: Convert to fraction form
    76,432.17/105,474.36 = 42,439.77/x
  3. Step 3: Cross multiply
    76,432.17x = 105,474.36 × 42,439.77
  4. Step 4: Simplify right side
    76,432.17x = 4,476,307,579.30
  5. Step 5: Solve for x
    x = 4,476,307,579.30/76,432.17
  6. Step 6: Final answer
    x = 58,565.75

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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.