Home / 74,155.68-111,233.52-20,852.40

Finding the Fourth Proportional to 74,155.68, 111,233.52 and 20,852.40

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Solution

The fourth proportional to 74,155.68, 111,233.52 and 20,852.40 is: 31,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,155.68 : 111,233.52 = 20,852.40 : x
  2. Step 2: Convert to fraction form
    74,155.68/111,233.52 = 20,852.40/x
  3. Step 3: Cross multiply
    74,155.68x = 111,233.52 × 20,852.40
  4. Step 4: Simplify right side
    74,155.68x = 2,319,485,852.45
  5. Step 5: Solve for x
    x = 2,319,485,852.45/74,155.68
  6. Step 6: Final answer
    x = 31,278.60

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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.