Home / 66,315.16-91,504.64-38,015.38

Finding the Fourth Proportional to 66,315.16, 91,504.64 and 38,015.38

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Solution

The fourth proportional to 66,315.16, 91,504.64 and 38,015.38 is: 52,455.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,315.16 : 91,504.64 = 38,015.38 : x
  2. Step 2: Convert to fraction form
    66,315.16/91,504.64 = 38,015.38/x
  3. Step 3: Cross multiply
    66,315.16x = 91,504.64 × 38,015.38
  4. Step 4: Simplify right side
    66,315.16x = 3,478,583,661.36
  5. Step 5: Solve for x
    x = 3,478,583,661.36/66,315.16
  6. Step 6: Final answer
    x = 52,455.33

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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.