Home / 52,133.76-78,204.29-20,969.01

Finding the Fourth Proportional to 52,133.76, 78,204.29 and 20,969.01

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Solution

The fourth proportional to 52,133.76, 78,204.29 and 20,969.01 is: 31,454.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,133.76 : 78,204.29 = 20,969.01 : x
  2. Step 2: Convert to fraction form
    52,133.76/78,204.29 = 20,969.01/x
  3. Step 3: Cross multiply
    52,133.76x = 78,204.29 × 20,969.01
  4. Step 4: Simplify right side
    52,133.76x = 1,639,866,434.21
  5. Step 5: Solve for x
    x = 1,639,866,434.21/52,133.76
  6. Step 6: Final answer
    x = 31,454.98

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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.