Home / 61,155.95-91,722.32-19,036.55

Finding the Fourth Proportional to 61,155.95, 91,722.32 and 19,036.55

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Solution

The fourth proportional to 61,155.95, 91,722.32 and 19,036.55 is: 28,551.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,155.95 : 91,722.32 = 19,036.55 : x
  2. Step 2: Convert to fraction form
    61,155.95/91,722.32 = 19,036.55/x
  3. Step 3: Cross multiply
    61,155.95x = 91,722.32 × 19,036.55
  4. Step 4: Simplify right side
    61,155.95x = 1,746,076,435.61
  5. Step 5: Solve for x
    x = 1,746,076,435.61/61,155.95
  6. Step 6: Final answer
    x = 28,551.21

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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.