Home / 90,785.14-136,177.71-28,460.50

Finding the Fourth Proportional to 90,785.14, 136,177.71 and 28,460.50

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Solution

The fourth proportional to 90,785.14, 136,177.71 and 28,460.50 is: 42,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,785.14 : 136,177.71 = 28,460.50 : x
  2. Step 2: Convert to fraction form
    90,785.14/136,177.71 = 28,460.50/x
  3. Step 3: Cross multiply
    90,785.14x = 136,177.71 × 28,460.50
  4. Step 4: Simplify right side
    90,785.14x = 3,875,685,715.46
  5. Step 5: Solve for x
    x = 3,875,685,715.46/90,785.14
  6. Step 6: Final answer
    x = 42,690.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.