Home / 74,170.40-111,265.28-39,111.36

Finding the Fourth Proportional to 74,170.40, 111,265.28 and 39,111.36

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Solution

The fourth proportional to 74,170.40, 111,265.28 and 39,111.36 is: 58,672.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,170.40 : 111,265.28 = 39,111.36 : x
  2. Step 2: Convert to fraction form
    74,170.40/111,265.28 = 39,111.36/x
  3. Step 3: Cross multiply
    74,170.40x = 111,265.28 × 39,111.36
  4. Step 4: Simplify right side
    74,170.40x = 4,351,736,421.58
  5. Step 5: Solve for x
    x = 4,351,736,421.58/74,170.40
  6. Step 6: Final answer
    x = 58,672.14

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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.