Home / 84,290.77-126,454.63-31,700.24

Finding the Fourth Proportional to 84,290.77, 126,454.63 and 31,700.24

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Solution

The fourth proportional to 84,290.77, 126,454.63 and 31,700.24 is: 47,557.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,290.77 : 126,454.63 = 31,700.24 : x
  2. Step 2: Convert to fraction form
    84,290.77/126,454.63 = 31,700.24/x
  3. Step 3: Cross multiply
    84,290.77x = 126,454.63 × 31,700.24
  4. Step 4: Simplify right side
    84,290.77x = 4,008,642,120.11
  5. Step 5: Solve for x
    x = 4,008,642,120.11/84,290.77
  6. Step 6: Final answer
    x = 47,557.31

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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.