Home / 76,446.27-105,459.03-49,597.20

Finding the Fourth Proportional to 76,446.27, 105,459.03 and 49,597.20

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Solution

The fourth proportional to 76,446.27, 105,459.03 and 49,597.20 is: 68,420.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,446.27 : 105,459.03 = 49,597.20 : x
  2. Step 2: Convert to fraction form
    76,446.27/105,459.03 = 49,597.20/x
  3. Step 3: Cross multiply
    76,446.27x = 105,459.03 × 49,597.20
  4. Step 4: Simplify right side
    76,446.27x = 5,230,472,602.72
  5. Step 5: Solve for x
    x = 5,230,472,602.72/76,446.27
  6. Step 6: Final answer
    x = 68,420.25

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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.