Home / 66,051.20-91,148.64-47,219.84

Finding the Fourth Proportional to 66,051.20, 91,148.64 and 47,219.84

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Solution

The fourth proportional to 66,051.20, 91,148.64 and 47,219.84 is: 65,161.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,051.20 : 91,148.64 = 47,219.84 : x
  2. Step 2: Convert to fraction form
    66,051.20/91,148.64 = 47,219.84/x
  3. Step 3: Cross multiply
    66,051.20x = 91,148.64 × 47,219.84
  4. Step 4: Simplify right side
    66,051.20x = 4,304,024,197.02
  5. Step 5: Solve for x
    x = 4,304,024,197.02/66,051.20
  6. Step 6: Final answer
    x = 65,161.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.