Home / 61,830.76-92,772.06-20,281.96

Finding the Fourth Proportional to 61,830.76, 92,772.06 and 20,281.96

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Solution

The fourth proportional to 61,830.76, 92,772.06 and 20,281.96 is: 30,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,830.76 : 92,772.06 = 20,281.96 : x
  2. Step 2: Convert to fraction form
    61,830.76/92,772.06 = 20,281.96/x
  3. Step 3: Cross multiply
    61,830.76x = 92,772.06 × 20,281.96
  4. Step 4: Simplify right side
    61,830.76x = 1,881,599,210.04
  5. Step 5: Solve for x
    x = 1,881,599,210.04/61,830.76
  6. Step 6: Final answer
    x = 30,431.44

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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.