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Finding the Fourth Proportional to 45,368.76, 68,053.12 and 12,536.76

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Solution

The fourth proportional to 45,368.76, 68,053.12 and 12,536.76 is: 18,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,368.76 : 68,053.12 = 12,536.76 : x
  2. Step 2: Convert to fraction form
    45,368.76/68,053.12 = 12,536.76/x
  3. Step 3: Cross multiply
    45,368.76x = 68,053.12 × 12,536.76
  4. Step 4: Simplify right side
    45,368.76x = 853,165,632.69
  5. Step 5: Solve for x
    x = 853,165,632.69/45,368.76
  6. Step 6: Final answer
    x = 18,805.13

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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.