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Finding the Fourth Proportional to 75,389.70, 104,001.84 and 45,160.50

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Solution

The fourth proportional to 75,389.70, 104,001.84 and 45,160.50 is: 62,299.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,389.70 : 104,001.84 = 45,160.50 : x
  2. Step 2: Convert to fraction form
    75,389.70/104,001.84 = 45,160.50/x
  3. Step 3: Cross multiply
    75,389.70x = 104,001.84 × 45,160.50
  4. Step 4: Simplify right side
    75,389.70x = 4,696,775,095.32
  5. Step 5: Solve for x
    x = 4,696,775,095.32/75,389.70
  6. Step 6: Final answer
    x = 62,299.96

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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.