Home / 73,943.68-102,040-42,117.12

Finding the Fourth Proportional to 73,943.68, 102,040 and 42,117.12

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Solution

The fourth proportional to 73,943.68, 102,040 and 42,117.12 is: 58,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,943.68 : 102,040 = 42,117.12 : x
  2. Step 2: Convert to fraction form
    73,943.68/102,040 = 42,117.12/x
  3. Step 3: Cross multiply
    73,943.68x = 102,040 × 42,117.12
  4. Step 4: Simplify right side
    73,943.68x = 4,297,630,924.80
  5. Step 5: Solve for x
    x = 4,297,630,924.80/73,943.68
  6. Step 6: Final answer
    x = 58,120.33

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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.