Home / 61,900.89-85,475.57-39,280.02

Finding the Fourth Proportional to 61,900.89, 85,475.57 and 39,280.02

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Solution

The fourth proportional to 61,900.89, 85,475.57 and 39,280.02 is: 54,239.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,900.89 : 85,475.57 = 39,280.02 : x
  2. Step 2: Convert to fraction form
    61,900.89/85,475.57 = 39,280.02/x
  3. Step 3: Cross multiply
    61,900.89x = 85,475.57 × 39,280.02
  4. Step 4: Simplify right side
    61,900.89x = 3,357,481,902.71
  5. Step 5: Solve for x
    x = 3,357,481,902.71/61,900.89
  6. Step 6: Final answer
    x = 54,239.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.