Home / 89,638.93-134,396.16-39,691.81

Finding the Fourth Proportional to 89,638.93, 134,396.16 and 39,691.81

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Solution

The fourth proportional to 89,638.93, 134,396.16 and 39,691.81 is: 59,510.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,638.93 : 134,396.16 = 39,691.81 : x
  2. Step 2: Convert to fraction form
    89,638.93/134,396.16 = 39,691.81/x
  3. Step 3: Cross multiply
    89,638.93x = 134,396.16 × 39,691.81
  4. Step 4: Simplify right side
    89,638.93x = 5,334,426,847.45
  5. Step 5: Solve for x
    x = 5,334,426,847.45/89,638.93
  6. Step 6: Final answer
    x = 59,510.16

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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.