Home / 58,582.87-87,856.13-21,138.08

Finding the Fourth Proportional to 58,582.87, 87,856.13 and 21,138.08

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Solution

The fourth proportional to 58,582.87, 87,856.13 and 21,138.08 is: 31,700.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,582.87 : 87,856.13 = 21,138.08 : x
  2. Step 2: Convert to fraction form
    58,582.87/87,856.13 = 21,138.08/x
  3. Step 3: Cross multiply
    58,582.87x = 87,856.13 × 21,138.08
  4. Step 4: Simplify right side
    58,582.87x = 1,857,109,798.74
  5. Step 5: Solve for x
    x = 1,857,109,798.74/58,582.87
  6. Step 6: Final answer
    x = 31,700.56

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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.