Home / 61,281.76-91,931.28-21,830.44

Finding the Fourth Proportional to 61,281.76, 91,931.28 and 21,830.44

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Solution

The fourth proportional to 61,281.76, 91,931.28 and 21,830.44 is: 32,748.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,281.76 : 91,931.28 = 21,830.44 : x
  2. Step 2: Convert to fraction form
    61,281.76/91,931.28 = 21,830.44/x
  3. Step 3: Cross multiply
    61,281.76x = 91,931.28 × 21,830.44
  4. Step 4: Simplify right side
    61,281.76x = 2,006,900,292.16
  5. Step 5: Solve for x
    x = 2,006,900,292.16/61,281.76
  6. Step 6: Final answer
    x = 32,748.74

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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.