Home / 72,344.04-99,841.32-40,081.76

Finding the Fourth Proportional to 72,344.04, 99,841.32 and 40,081.76

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Solution

The fourth proportional to 72,344.04, 99,841.32 and 40,081.76 is: 55,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,344.04 : 99,841.32 = 40,081.76 : x
  2. Step 2: Convert to fraction form
    72,344.04/99,841.32 = 40,081.76/x
  3. Step 3: Cross multiply
    72,344.04x = 99,841.32 × 40,081.76
  4. Step 4: Simplify right side
    72,344.04x = 4,001,815,826.32
  5. Step 5: Solve for x
    x = 4,001,815,826.32/72,344.04
  6. Step 6: Final answer
    x = 55,316.45

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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.