Home / 72,246.76-99,705.78-40,425.91

Finding the Fourth Proportional to 72,246.76, 99,705.78 and 40,425.91

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Solution

The fourth proportional to 72,246.76, 99,705.78 and 40,425.91 is: 55,790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,246.76 : 99,705.78 = 40,425.91 : x
  2. Step 2: Convert to fraction form
    72,246.76/99,705.78 = 40,425.91/x
  3. Step 3: Cross multiply
    72,246.76x = 99,705.78 × 40,425.91
  4. Step 4: Simplify right side
    72,246.76x = 4,030,696,888.76
  5. Step 5: Solve for x
    x = 4,030,696,888.76/72,246.76
  6. Step 6: Final answer
    x = 55,790.69

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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.