Home / 58,321.10-87,463.41-18,870.05

Finding the Fourth Proportional to 58,321.10, 87,463.41 and 18,870.05

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Solution

The fourth proportional to 58,321.10, 87,463.41 and 18,870.05 is: 28,299.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,321.10 : 87,463.41 = 18,870.05 : x
  2. Step 2: Convert to fraction form
    58,321.10/87,463.41 = 18,870.05/x
  3. Step 3: Cross multiply
    58,321.10x = 87,463.41 × 18,870.05
  4. Step 4: Simplify right side
    58,321.10x = 1,650,438,482.55
  5. Step 5: Solve for x
    x = 1,650,438,482.55/58,321.10
  6. Step 6: Final answer
    x = 28,299.17

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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.