Home / 52,555.36-78,831.12-15,618.40

Finding the Fourth Proportional to 52,555.36, 78,831.12 and 15,618.40

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Solution

The fourth proportional to 52,555.36, 78,831.12 and 15,618.40 is: 23,427.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,555.36 : 78,831.12 = 15,618.40 : x
  2. Step 2: Convert to fraction form
    52,555.36/78,831.12 = 15,618.40/x
  3. Step 3: Cross multiply
    52,555.36x = 78,831.12 × 15,618.40
  4. Step 4: Simplify right side
    52,555.36x = 1,231,215,964.61
  5. Step 5: Solve for x
    x = 1,231,215,964.61/52,555.36
  6. Step 6: Final answer
    x = 23,427.03

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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.