Home / 89,790.28-134,717.64-38,477.40

Finding the Fourth Proportional to 89,790.28, 134,717.64 and 38,477.40

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Solution

The fourth proportional to 89,790.28, 134,717.64 and 38,477.40 is: 57,729.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,790.28 : 134,717.64 = 38,477.40 : x
  2. Step 2: Convert to fraction form
    89,790.28/134,717.64 = 38,477.40/x
  3. Step 3: Cross multiply
    89,790.28x = 134,717.64 × 38,477.40
  4. Step 4: Simplify right side
    89,790.28x = 5,183,584,521.34
  5. Step 5: Solve for x
    x = 5,183,584,521.34/89,790.28
  6. Step 6: Final answer
    x = 57,729.91

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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.