Home / 191,561.32-287,387-58,441.60

Finding the Fourth Proportional to 191,561.32, 287,387 and 58,441.60

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Solution

The fourth proportional to 191,561.32, 287,387 and 58,441.60 is: 87,676.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,561.32 : 287,387 = 58,441.60 : x
  2. Step 2: Convert to fraction form
    191,561.32/287,387 = 58,441.60/x
  3. Step 3: Cross multiply
    191,561.32x = 287,387 × 58,441.60
  4. Step 4: Simplify right side
    191,561.32x = 16,795,356,099.20
  5. Step 5: Solve for x
    x = 16,795,356,099.20/191,561.32
  6. Step 6: Final answer
    x = 87,676.13

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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.