Home / 84,502.06-126,706.65-28,312.63

Finding the Fourth Proportional to 84,502.06, 126,706.65 and 28,312.63

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Solution

The fourth proportional to 84,502.06, 126,706.65 and 28,312.63 is: 42,453.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,502.06 : 126,706.65 = 28,312.63 : x
  2. Step 2: Convert to fraction form
    84,502.06/126,706.65 = 28,312.63/x
  3. Step 3: Cross multiply
    84,502.06x = 126,706.65 × 28,312.63
  4. Step 4: Simplify right side
    84,502.06x = 3,587,398,499.99
  5. Step 5: Solve for x
    x = 3,587,398,499.99/84,502.06
  6. Step 6: Final answer
    x = 42,453.39

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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.