Home / 78,275.36-108,020.40-42,466.88

Finding the Fourth Proportional to 78,275.36, 108,020.40 and 42,466.88

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Solution

The fourth proportional to 78,275.36, 108,020.40 and 42,466.88 is: 58,604.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,275.36 : 108,020.40 = 42,466.88 : x
  2. Step 2: Convert to fraction form
    78,275.36/108,020.40 = 42,466.88/x
  3. Step 3: Cross multiply
    78,275.36x = 108,020.40 × 42,466.88
  4. Step 4: Simplify right side
    78,275.36x = 4,587,289,364.35
  5. Step 5: Solve for x
    x = 4,587,289,364.35/78,275.36
  6. Step 6: Final answer
    x = 58,604.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.