Home / 66,147.84-91,017.27-64,573.20

Finding the Fourth Proportional to 66,147.84, 91,017.27 and 64,573.20

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Solution

The fourth proportional to 66,147.84, 91,017.27 and 64,573.20 is: 88,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,147.84 : 91,017.27 = 64,573.20 : x
  2. Step 2: Convert to fraction form
    66,147.84/91,017.27 = 64,573.20/x
  3. Step 3: Cross multiply
    66,147.84x = 91,017.27 × 64,573.20
  4. Step 4: Simplify right side
    66,147.84x = 5,877,276,379.16
  5. Step 5: Solve for x
    x = 5,877,276,379.16/66,147.84
  6. Step 6: Final answer
    x = 88,850.62

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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.