Home / 42,904.46-59,142.51-30,121.77

Finding the Fourth Proportional to 42,904.46, 59,142.51 and 30,121.77

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Solution

The fourth proportional to 42,904.46, 59,142.51 and 30,121.77 is: 41,521.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,904.46 : 59,142.51 = 30,121.77 : x
  2. Step 2: Convert to fraction form
    42,904.46/59,142.51 = 30,121.77/x
  3. Step 3: Cross multiply
    42,904.46x = 59,142.51 × 30,121.77
  4. Step 4: Simplify right side
    42,904.46x = 1,781,477,083.44
  5. Step 5: Solve for x
    x = 1,781,477,083.44/42,904.46
  6. Step 6: Final answer
    x = 41,521.96

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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.