Home / 78,848.88-108,769.68-47,012.64

Finding the Fourth Proportional to 78,848.88, 108,769.68 and 47,012.64

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Solution

The fourth proportional to 78,848.88, 108,769.68 and 47,012.64 is: 64,852.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,848.88 : 108,769.68 = 47,012.64 : x
  2. Step 2: Convert to fraction form
    78,848.88/108,769.68 = 47,012.64/x
  3. Step 3: Cross multiply
    78,848.88x = 108,769.68 × 47,012.64
  4. Step 4: Simplify right side
    78,848.88x = 5,113,549,808.76
  5. Step 5: Solve for x
    x = 5,113,549,808.76/78,848.88
  6. Step 6: Final answer
    x = 64,852.54

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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.