Home / 84,412.08-126,555.21-28,218.93

Finding the Fourth Proportional to 84,412.08, 126,555.21 and 28,218.93

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Solution

The fourth proportional to 84,412.08, 126,555.21 and 28,218.93 is: 42,307.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,412.08 : 126,555.21 = 28,218.93 : x
  2. Step 2: Convert to fraction form
    84,412.08/126,555.21 = 28,218.93/x
  3. Step 3: Cross multiply
    84,412.08x = 126,555.21 × 28,218.93
  4. Step 4: Simplify right side
    84,412.08x = 3,571,252,612.13
  5. Step 5: Solve for x
    x = 3,571,252,612.13/84,412.08
  6. Step 6: Final answer
    x = 42,307.36

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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.