Home / 89,817.78-134,810.10-45,475.95

Finding the Fourth Proportional to 89,817.78, 134,810.10 and 45,475.95

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Solution

The fourth proportional to 89,817.78, 134,810.10 and 45,475.95 is: 68,256.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,817.78 : 134,810.10 = 45,475.95 : x
  2. Step 2: Convert to fraction form
    89,817.78/134,810.10 = 45,475.95/x
  3. Step 3: Cross multiply
    89,817.78x = 134,810.10 × 45,475.95
  4. Step 4: Simplify right side
    89,817.78x = 6,130,617,367.10
  5. Step 5: Solve for x
    x = 6,130,617,367.10/89,817.78
  6. Step 6: Final answer
    x = 68,256.17

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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.