Home / 64,787.15-97,194.36-36,720.65

Finding the Fourth Proportional to 64,787.15, 97,194.36 and 36,720.65

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Solution

The fourth proportional to 64,787.15, 97,194.36 and 36,720.65 is: 55,088.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,787.15 : 97,194.36 = 36,720.65 : x
  2. Step 2: Convert to fraction form
    64,787.15/97,194.36 = 36,720.65/x
  3. Step 3: Cross multiply
    64,787.15x = 97,194.36 × 36,720.65
  4. Step 4: Simplify right side
    64,787.15x = 3,569,040,075.53
  5. Step 5: Solve for x
    x = 3,569,040,075.53/64,787.15
  6. Step 6: Final answer
    x = 55,088.70

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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.