Home / 90,634.23-135,970.79-38,013.39

Finding the Fourth Proportional to 90,634.23, 135,970.79 and 38,013.39

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Solution

The fourth proportional to 90,634.23, 135,970.79 and 38,013.39 is: 57,028.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,634.23 : 135,970.79 = 38,013.39 : x
  2. Step 2: Convert to fraction form
    90,634.23/135,970.79 = 38,013.39/x
  3. Step 3: Cross multiply
    90,634.23x = 135,970.79 × 38,013.39
  4. Step 4: Simplify right side
    90,634.23x = 5,168,710,478.81
  5. Step 5: Solve for x
    x = 5,168,710,478.81/90,634.23
  6. Step 6: Final answer
    x = 57,028.24

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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.