Home / 52,289.74-78,428.13-19,008.46

Finding the Fourth Proportional to 52,289.74, 78,428.13 and 19,008.46

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Solution

The fourth proportional to 52,289.74, 78,428.13 and 19,008.46 is: 28,510.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,289.74 : 78,428.13 = 19,008.46 : x
  2. Step 2: Convert to fraction form
    52,289.74/78,428.13 = 19,008.46/x
  3. Step 3: Cross multiply
    52,289.74x = 78,428.13 × 19,008.46
  4. Step 4: Simplify right side
    52,289.74x = 1,490,797,971.98
  5. Step 5: Solve for x
    x = 1,490,797,971.98/52,289.74
  6. Step 6: Final answer
    x = 28,510.33

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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.