Home / 91,256.84-136,898.44-28,082.40

Finding the Fourth Proportional to 91,256.84, 136,898.44 and 28,082.40

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Solution

The fourth proportional to 91,256.84, 136,898.44 and 28,082.40 is: 42,127.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,256.84 : 136,898.44 = 28,082.40 : x
  2. Step 2: Convert to fraction form
    91,256.84/136,898.44 = 28,082.40/x
  3. Step 3: Cross multiply
    91,256.84x = 136,898.44 × 28,082.40
  4. Step 4: Simplify right side
    91,256.84x = 3,844,436,751.46
  5. Step 5: Solve for x
    x = 3,844,436,751.46/91,256.84
  6. Step 6: Final answer
    x = 42,127.66

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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.