Home / 61,434.09-92,155.32-20,891.09

Finding the Fourth Proportional to 61,434.09, 92,155.32 and 20,891.09

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Solution

The fourth proportional to 61,434.09, 92,155.32 and 20,891.09 is: 31,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,434.09 : 92,155.32 = 20,891.09 : x
  2. Step 2: Convert to fraction form
    61,434.09/92,155.32 = 20,891.09/x
  3. Step 3: Cross multiply
    61,434.09x = 92,155.32 × 20,891.09
  4. Step 4: Simplify right side
    61,434.09x = 1,925,225,084.10
  5. Step 5: Solve for x
    x = 1,925,225,084.10/61,434.09
  6. Step 6: Final answer
    x = 31,338.06

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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.