Home / 90,907.11-136,379.16-38,316.51

Finding the Fourth Proportional to 90,907.11, 136,379.16 and 38,316.51

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Solution

The fourth proportional to 90,907.11, 136,379.16 and 38,316.51 is: 57,482.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,907.11 : 136,379.16 = 38,316.51 : x
  2. Step 2: Convert to fraction form
    90,907.11/136,379.16 = 38,316.51/x
  3. Step 3: Cross multiply
    90,907.11x = 136,379.16 × 38,316.51
  4. Step 4: Simplify right side
    90,907.11x = 5,225,573,447.93
  5. Step 5: Solve for x
    x = 5,225,573,447.93/90,907.11
  6. Step 6: Final answer
    x = 57,482.56

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1.5x scale

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.