Home / 76,417.28-105,456.23-47,753.58

Finding the Fourth Proportional to 76,417.28, 105,456.23 and 47,753.58

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Solution

The fourth proportional to 76,417.28, 105,456.23 and 47,753.58 is: 65,900.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,417.28 : 105,456.23 = 47,753.58 : x
  2. Step 2: Convert to fraction form
    76,417.28/105,456.23 = 47,753.58/x
  3. Step 3: Cross multiply
    76,417.28x = 105,456.23 × 47,753.58
  4. Step 4: Simplify right side
    76,417.28x = 5,035,912,515.80
  5. Step 5: Solve for x
    x = 5,035,912,515.80/76,417.28
  6. Step 6: Final answer
    x = 65,900.18

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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.