Home / 83,485.86-125,170.47-30,888.51

Finding the Fourth Proportional to 83,485.86, 125,170.47 and 30,888.51

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Solution

The fourth proportional to 83,485.86, 125,170.47 and 30,888.51 is: 46,311.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,485.86 : 125,170.47 = 30,888.51 : x
  2. Step 2: Convert to fraction form
    83,485.86/125,170.47 = 30,888.51/x
  3. Step 3: Cross multiply
    83,485.86x = 125,170.47 × 30,888.51
  4. Step 4: Simplify right side
    83,485.86x = 3,866,329,314.30
  5. Step 5: Solve for x
    x = 3,866,329,314.30/83,485.86
  6. Step 6: Final answer
    x = 46,311.19

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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.