Home / 74,762.10-112,016.20-45,117.66

Finding the Fourth Proportional to 74,762.10, 112,016.20 and 45,117.66

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Solution

The fourth proportional to 74,762.10, 112,016.20 and 45,117.66 is: 67,599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,762.10 : 112,016.20 = 45,117.66 : x
  2. Step 2: Convert to fraction form
    74,762.10/112,016.20 = 45,117.66/x
  3. Step 3: Cross multiply
    74,762.10x = 112,016.20 × 45,117.66
  4. Step 4: Simplify right side
    74,762.10x = 5,053,908,826.09
  5. Step 5: Solve for x
    x = 5,053,908,826.09/74,762.10
  6. Step 6: Final answer
    x = 67,599.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.