Home / 90,063.12-135,097.43-30,897.95

Finding the Fourth Proportional to 90,063.12, 135,097.43 and 30,897.95

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Solution

The fourth proportional to 90,063.12, 135,097.43 and 30,897.95 is: 46,347.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,063.12 : 135,097.43 = 30,897.95 : x
  2. Step 2: Convert to fraction form
    90,063.12/135,097.43 = 30,897.95/x
  3. Step 3: Cross multiply
    90,063.12x = 135,097.43 × 30,897.95
  4. Step 4: Simplify right side
    90,063.12x = 4,174,232,807.29
  5. Step 5: Solve for x
    x = 4,174,232,807.29/90,063.12
  6. Step 6: Final answer
    x = 46,347.86

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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.