Home / 66,187.16-91,337.73-40,338.23

Finding the Fourth Proportional to 66,187.16, 91,337.73 and 40,338.23

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Solution

The fourth proportional to 66,187.16, 91,337.73 and 40,338.23 is: 55,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,187.16 : 91,337.73 = 40,338.23 : x
  2. Step 2: Convert to fraction form
    66,187.16/91,337.73 = 40,338.23/x
  3. Step 3: Cross multiply
    66,187.16x = 91,337.73 × 40,338.23
  4. Step 4: Simplify right side
    66,187.16x = 3,684,402,360.42
  5. Step 5: Solve for x
    x = 3,684,402,360.42/66,187.16
  6. Step 6: Final answer
    x = 55,666.42

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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.