Home / 61,037.36-91,570.32-18,915.24

Finding the Fourth Proportional to 61,037.36, 91,570.32 and 18,915.24

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Solution

The fourth proportional to 61,037.36, 91,570.32 and 18,915.24 is: 28,377.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,037.36 : 91,570.32 = 18,915.24 : x
  2. Step 2: Convert to fraction form
    61,037.36/91,570.32 = 18,915.24/x
  3. Step 3: Cross multiply
    61,037.36x = 91,570.32 × 18,915.24
  4. Step 4: Simplify right side
    61,037.36x = 1,732,074,579.68
  5. Step 5: Solve for x
    x = 1,732,074,579.68/61,037.36
  6. Step 6: Final answer
    x = 28,377.29

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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.