Home / 78,954.38-118,450.16-25,646.19

Finding the Fourth Proportional to 78,954.38, 118,450.16 and 25,646.19

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Solution

The fourth proportional to 78,954.38, 118,450.16 and 25,646.19 is: 38,475.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,954.38 : 118,450.16 = 25,646.19 : x
  2. Step 2: Convert to fraction form
    78,954.38/118,450.16 = 25,646.19/x
  3. Step 3: Cross multiply
    78,954.38x = 118,450.16 × 25,646.19
  4. Step 4: Simplify right side
    78,954.38x = 3,037,795,595.10
  5. Step 5: Solve for x
    x = 3,037,795,595.10/78,954.38
  6. Step 6: Final answer
    x = 38,475.33

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1.5x scale

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.