Home / 42,085.51-63,135.56-18,713.77

Finding the Fourth Proportional to 42,085.51, 63,135.56 and 18,713.77

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Solution

The fourth proportional to 42,085.51, 63,135.56 and 18,713.77 is: 28,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,085.51 : 63,135.56 = 18,713.77 : x
  2. Step 2: Convert to fraction form
    42,085.51/63,135.56 = 18,713.77/x
  3. Step 3: Cross multiply
    42,085.51x = 63,135.56 × 18,713.77
  4. Step 4: Simplify right side
    42,085.51x = 1,181,504,348.66
  5. Step 5: Solve for x
    x = 1,181,504,348.66/42,085.51
  6. Step 6: Final answer
    x = 28,073.90

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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.