Home / 52,095.36-78,156-20,507.52

Finding the Fourth Proportional to 52,095.36, 78,156 and 20,507.52

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Solution

The fourth proportional to 52,095.36, 78,156 and 20,507.52 is: 30,766.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,095.36 : 78,156 = 20,507.52 : x
  2. Step 2: Convert to fraction form
    52,095.36/78,156 = 20,507.52/x
  3. Step 3: Cross multiply
    52,095.36x = 78,156 × 20,507.52
  4. Step 4: Simplify right side
    52,095.36x = 1,602,785,733.12
  5. Step 5: Solve for x
    x = 1,602,785,733.12/52,095.36
  6. Step 6: Final answer
    x = 30,766.38

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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.