Home / 61,099.81-91,664.06-18,977.71

Finding the Fourth Proportional to 61,099.81, 91,664.06 and 18,977.71

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Solution

The fourth proportional to 61,099.81, 91,664.06 and 18,977.71 is: 28,471.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,099.81 : 91,664.06 = 18,977.71 : x
  2. Step 2: Convert to fraction form
    61,099.81/91,664.06 = 18,977.71/x
  3. Step 3: Cross multiply
    61,099.81x = 91,664.06 × 18,977.71
  4. Step 4: Simplify right side
    61,099.81x = 1,739,573,948.10
  5. Step 5: Solve for x
    x = 1,739,573,948.10/61,099.81
  6. Step 6: Final answer
    x = 28,471.02

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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.