Home / 78,454.19-108,266.47-42,644.09

Finding the Fourth Proportional to 78,454.19, 108,266.47 and 42,644.09

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Solution

The fourth proportional to 78,454.19, 108,266.47 and 42,644.09 is: 58,848.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,454.19 : 108,266.47 = 42,644.09 : x
  2. Step 2: Convert to fraction form
    78,454.19/108,266.47 = 42,644.09/x
  3. Step 3: Cross multiply
    78,454.19x = 108,266.47 × 42,644.09
  4. Step 4: Simplify right side
    78,454.19x = 4,616,924,442.72
  5. Step 5: Solve for x
    x = 4,616,924,442.72/78,454.19
  6. Step 6: Final answer
    x = 58,848.67

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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.