Home / 84,013.08-126,019.29-39,615.76

Finding the Fourth Proportional to 84,013.08, 126,019.29 and 39,615.76

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Solution

The fourth proportional to 84,013.08, 126,019.29 and 39,615.76 is: 59,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,013.08 : 126,019.29 = 39,615.76 : x
  2. Step 2: Convert to fraction form
    84,013.08/126,019.29 = 39,615.76/x
  3. Step 3: Cross multiply
    84,013.08x = 126,019.29 × 39,615.76
  4. Step 4: Simplify right side
    84,013.08x = 4,992,349,948.01
  5. Step 5: Solve for x
    x = 4,992,349,948.01/84,013.08
  6. Step 6: Final answer
    x = 59,423.48

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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.