Home / 52,258.65-78,419.13-18,981.33

Finding the Fourth Proportional to 52,258.65, 78,419.13 and 18,981.33

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Solution

The fourth proportional to 52,258.65, 78,419.13 and 18,981.33 is: 28,483.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,258.65 : 78,419.13 = 18,981.33 : x
  2. Step 2: Convert to fraction form
    52,258.65/78,419.13 = 18,981.33/x
  3. Step 3: Cross multiply
    52,258.65x = 78,419.13 × 18,981.33
  4. Step 4: Simplify right side
    52,258.65x = 1,488,499,384.84
  5. Step 5: Solve for x
    x = 1,488,499,384.84/52,258.65
  6. Step 6: Final answer
    x = 28,483.31

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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.