Home / 66,598.80-99,768.60-40,225.20

Finding the Fourth Proportional to 66,598.80, 99,768.60 and 40,225.20

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Solution

The fourth proportional to 66,598.80, 99,768.60 and 40,225.20 is: 60,259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,598.80 : 99,768.60 = 40,225.20 : x
  2. Step 2: Convert to fraction form
    66,598.80/99,768.60 = 40,225.20/x
  3. Step 3: Cross multiply
    66,598.80x = 99,768.60 × 40,225.20
  4. Step 4: Simplify right side
    66,598.80x = 4,013,211,888.72
  5. Step 5: Solve for x
    x = 4,013,211,888.72/66,598.80
  6. Step 6: Final answer
    x = 60,259.52

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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.