Home / 42,074.20-63,111.66-19,888.12

Finding the Fourth Proportional to 42,074.20, 63,111.66 and 19,888.12

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Solution

The fourth proportional to 42,074.20, 63,111.66 and 19,888.12 is: 29,832.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,074.20 : 63,111.66 = 19,888.12 : x
  2. Step 2: Convert to fraction form
    42,074.20/63,111.66 = 19,888.12/x
  3. Step 3: Cross multiply
    42,074.20x = 63,111.66 × 19,888.12
  4. Step 4: Simplify right side
    42,074.20x = 1,255,172,267.48
  5. Step 5: Solve for x
    x = 1,255,172,267.48/42,074.20
  6. Step 6: Final answer
    x = 29,832.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.