Home / 84,089.28-126,212.64-42,565.44

Finding the Fourth Proportional to 84,089.28, 126,212.64 and 42,565.44

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Solution

The fourth proportional to 84,089.28, 126,212.64 and 42,565.44 is: 63,888.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,089.28 : 126,212.64 = 42,565.44 : x
  2. Step 2: Convert to fraction form
    84,089.28/126,212.64 = 42,565.44/x
  3. Step 3: Cross multiply
    84,089.28x = 126,212.64 × 42,565.44
  4. Step 4: Simplify right side
    84,089.28x = 5,372,296,555.16
  5. Step 5: Solve for x
    x = 5,372,296,555.16/84,089.28
  6. Step 6: Final answer
    x = 63,888.01

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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.