Home / 81,046.18-121,467-41,075.21

Finding the Fourth Proportional to 81,046.18, 121,467 and 41,075.21

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Solution

The fourth proportional to 81,046.18, 121,467 and 41,075.21 is: 61,560.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,046.18 : 121,467 = 41,075.21 : x
  2. Step 2: Convert to fraction form
    81,046.18/121,467 = 41,075.21/x
  3. Step 3: Cross multiply
    81,046.18x = 121,467 × 41,075.21
  4. Step 4: Simplify right side
    81,046.18x = 4,989,281,925.74
  5. Step 5: Solve for x
    x = 4,989,281,925.74/81,046.18
  6. Step 6: Final answer
    x = 61,560.98

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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.