Home / 57,878.02-86,833.46-18,438.18

Finding the Fourth Proportional to 57,878.02, 86,833.46 and 18,438.18

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Solution

The fourth proportional to 57,878.02, 86,833.46 and 18,438.18 is: 27,662.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,878.02 : 86,833.46 = 18,438.18 : x
  2. Step 2: Convert to fraction form
    57,878.02/86,833.46 = 18,438.18/x
  3. Step 3: Cross multiply
    57,878.02x = 86,833.46 × 18,438.18
  4. Step 4: Simplify right side
    57,878.02x = 1,601,050,965.50
  5. Step 5: Solve for x
    x = 1,601,050,965.50/57,878.02
  6. Step 6: Final answer
    x = 27,662.50

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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.