Home / 45,753.06-63,178.62-28,785.59

Finding the Fourth Proportional to 45,753.06, 63,178.62 and 28,785.59

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Solution

The fourth proportional to 45,753.06, 63,178.62 and 28,785.59 is: 39,748.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,753.06 : 63,178.62 = 28,785.59 : x
  2. Step 2: Convert to fraction form
    45,753.06/63,178.62 = 28,785.59/x
  3. Step 3: Cross multiply
    45,753.06x = 63,178.62 × 28,785.59
  4. Step 4: Simplify right side
    45,753.06x = 1,818,633,536.19
  5. Step 5: Solve for x
    x = 1,818,633,536.19/45,753.06
  6. Step 6: Final answer
    x = 39,748.89

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Double scale
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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.