Home / 66,055.50-99,059.34-28,107.30

Finding the Fourth Proportional to 66,055.50, 99,059.34 and 28,107.30

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Solution

The fourth proportional to 66,055.50, 99,059.34 and 28,107.30 is: 42,150.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,055.50 : 99,059.34 = 28,107.30 : x
  2. Step 2: Convert to fraction form
    66,055.50/99,059.34 = 28,107.30/x
  3. Step 3: Cross multiply
    66,055.50x = 99,059.34 × 28,107.30
  4. Step 4: Simplify right side
    66,055.50x = 2,784,290,587.18
  5. Step 5: Solve for x
    x = 2,784,290,587.18/66,055.50
  6. Step 6: Final answer
    x = 42,150.78

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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.