Home / 66,426.12-99,739.80-57,167.64

Finding the Fourth Proportional to 66,426.12, 99,739.80 and 57,167.64

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Solution

The fourth proportional to 66,426.12, 99,739.80 and 57,167.64 is: 85,838.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,426.12 : 99,739.80 = 57,167.64 : x
  2. Step 2: Convert to fraction form
    66,426.12/99,739.80 = 57,167.64/x
  3. Step 3: Cross multiply
    66,426.12x = 99,739.80 × 57,167.64
  4. Step 4: Simplify right side
    66,426.12x = 5,701,888,980.07
  5. Step 5: Solve for x
    x = 5,701,888,980.07/66,426.12
  6. Step 6: Final answer
    x = 85,838.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.