Home / 57,569.02-86,353.80-20,128.93

Finding the Fourth Proportional to 57,569.02, 86,353.80 and 20,128.93

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Solution

The fourth proportional to 57,569.02, 86,353.80 and 20,128.93 is: 30,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,569.02 : 86,353.80 = 20,128.93 : x
  2. Step 2: Convert to fraction form
    57,569.02/86,353.80 = 20,128.93/x
  3. Step 3: Cross multiply
    57,569.02x = 86,353.80 × 20,128.93
  4. Step 4: Simplify right side
    57,569.02x = 1,738,209,595.43
  5. Step 5: Solve for x
    x = 1,738,209,595.43/57,569.02
  6. Step 6: Final answer
    x = 30,193.49

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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.