Home / 66,525.71-91,814.38-42,329.05

Finding the Fourth Proportional to 66,525.71, 91,814.38 and 42,329.05

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Solution

The fourth proportional to 66,525.71, 91,814.38 and 42,329.05 is: 58,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,525.71 : 91,814.38 = 42,329.05 : x
  2. Step 2: Convert to fraction form
    66,525.71/91,814.38 = 42,329.05/x
  3. Step 3: Cross multiply
    66,525.71x = 91,814.38 × 42,329.05
  4. Step 4: Simplify right side
    66,525.71x = 3,886,415,146.38
  5. Step 5: Solve for x
    x = 3,886,415,146.38/66,525.71
  6. Step 6: Final answer
    x = 58,419.75

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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.