Home / 45,748.70-63,172.17-28,781.34

Finding the Fourth Proportional to 45,748.70, 63,172.17 and 28,781.34

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Solution

The fourth proportional to 45,748.70, 63,172.17 and 28,781.34 is: 39,742.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,748.70 : 63,172.17 = 28,781.34 : x
  2. Step 2: Convert to fraction form
    45,748.70/63,172.17 = 28,781.34/x
  3. Step 3: Cross multiply
    45,748.70x = 63,172.17 × 28,781.34
  4. Step 4: Simplify right side
    45,748.70x = 1,818,179,703.31
  5. Step 5: Solve for x
    x = 1,818,179,703.31/45,748.70
  6. Step 6: Final answer
    x = 39,742.77

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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.