Home / 109,065.53-163,685.79-56,490.05

Finding the Fourth Proportional to 109,065.53, 163,685.79 and 56,490.05

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Solution

The fourth proportional to 109,065.53, 163,685.79 and 56,490.05 is: 84,780.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,065.53 : 163,685.79 = 56,490.05 : x
  2. Step 2: Convert to fraction form
    109,065.53/163,685.79 = 56,490.05/x
  3. Step 3: Cross multiply
    109,065.53x = 163,685.79 × 56,490.05
  4. Step 4: Simplify right side
    109,065.53x = 9,246,618,870.60
  5. Step 5: Solve for x
    x = 9,246,618,870.60/109,065.53
  6. Step 6: Final answer
    x = 84,780.39

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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.