Home / 45,753.12-63,130.32-28,747.51

Finding the Fourth Proportional to 45,753.12, 63,130.32 and 28,747.51

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Solution

The fourth proportional to 45,753.12, 63,130.32 and 28,747.51 is: 39,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,753.12 : 63,130.32 = 28,747.51 : x
  2. Step 2: Convert to fraction form
    45,753.12/63,130.32 = 28,747.51/x
  3. Step 3: Cross multiply
    45,753.12x = 63,130.32 × 28,747.51
  4. Step 4: Simplify right side
    45,753.12x = 1,814,839,189.85
  5. Step 5: Solve for x
    x = 1,814,839,189.85/45,753.12
  6. Step 6: Final answer
    x = 39,665.92

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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.