Home / 78,276.46-108,020.91-42,466.36

Finding the Fourth Proportional to 78,276.46, 108,020.91 and 42,466.36

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Solution

The fourth proportional to 78,276.46, 108,020.91 and 42,466.36 is: 58,603.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,276.46 : 108,020.91 = 42,466.36 : x
  2. Step 2: Convert to fraction form
    78,276.46/108,020.91 = 42,466.36/x
  3. Step 3: Cross multiply
    78,276.46x = 108,020.91 × 42,466.36
  4. Step 4: Simplify right side
    78,276.46x = 4,587,254,851.59
  5. Step 5: Solve for x
    x = 4,587,254,851.59/78,276.46
  6. Step 6: Final answer
    x = 58,603.25

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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.