Home / 78,958.02-118,437.03-39,475.38

Finding the Fourth Proportional to 78,958.02, 118,437.03 and 39,475.38

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Solution

The fourth proportional to 78,958.02, 118,437.03 and 39,475.38 is: 59,213.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,958.02 : 118,437.03 = 39,475.38 : x
  2. Step 2: Convert to fraction form
    78,958.02/118,437.03 = 39,475.38/x
  3. Step 3: Cross multiply
    78,958.02x = 118,437.03 × 39,475.38
  4. Step 4: Simplify right side
    78,958.02x = 4,675,346,765.32
  5. Step 5: Solve for x
    x = 4,675,346,765.32/78,958.02
  6. Step 6: Final answer
    x = 59,213.07

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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.