Home / 61,038.57-91,552.65-18,917.70

Finding the Fourth Proportional to 61,038.57, 91,552.65 and 18,917.70

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Solution

The fourth proportional to 61,038.57, 91,552.65 and 18,917.70 is: 28,374.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,038.57 : 91,552.65 = 18,917.70 : x
  2. Step 2: Convert to fraction form
    61,038.57/91,552.65 = 18,917.70/x
  3. Step 3: Cross multiply
    61,038.57x = 91,552.65 × 18,917.70
  4. Step 4: Simplify right side
    61,038.57x = 1,731,965,566.91
  5. Step 5: Solve for x
    x = 1,731,965,566.91/61,038.57
  6. Step 6: Final answer
    x = 28,374.94

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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.