Home / 57,120.24-85,689.48-19,671.06

Finding the Fourth Proportional to 57,120.24, 85,689.48 and 19,671.06

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Solution

The fourth proportional to 57,120.24, 85,689.48 and 19,671.06 is: 29,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120.24 : 85,689.48 = 19,671.06 : x
  2. Step 2: Convert to fraction form
    57,120.24/85,689.48 = 19,671.06/x
  3. Step 3: Cross multiply
    57,120.24x = 85,689.48 × 19,671.06
  4. Step 4: Simplify right side
    57,120.24x = 1,685,602,902.45
  5. Step 5: Solve for x
    x = 1,685,602,902.45/57,120.24
  6. Step 6: Final answer
    x = 29,509.73

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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.