Home / 57,132.04-85,666-39,140.60

Finding the Fourth Proportional to 57,132.04, 85,666 and 39,140.60

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Solution

The fourth proportional to 57,132.04, 85,666 and 39,140.60 is: 58,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,132.04 : 85,666 = 39,140.60 : x
  2. Step 2: Convert to fraction form
    57,132.04/85,666 = 39,140.60/x
  3. Step 3: Cross multiply
    57,132.04x = 85,666 × 39,140.60
  4. Step 4: Simplify right side
    57,132.04x = 3,353,018,211.27
  5. Step 5: Solve for x
    x = 3,353,018,211.27/57,132.04
  6. Step 6: Final answer
    x = 58,688.93

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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.