Home / 75,176.04-103,740.22-42,912.32

Finding the Fourth Proportional to 75,176.04, 103,740.22 and 42,912.32

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Solution

The fourth proportional to 75,176.04, 103,740.22 and 42,912.32 is: 59,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,176.04 : 103,740.22 = 42,912.32 : x
  2. Step 2: Convert to fraction form
    75,176.04/103,740.22 = 42,912.32/x
  3. Step 3: Cross multiply
    75,176.04x = 103,740.22 × 42,912.32
  4. Step 4: Simplify right side
    75,176.04x = 4,451,733,669.58
  5. Step 5: Solve for x
    x = 4,451,733,669.58/75,176.04
  6. Step 6: Final answer
    x = 59,217.45

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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.