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Finding the Fourth Proportional to 58,043.17, 87,103.59 and 21,107.17

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Solution

The fourth proportional to 58,043.17, 87,103.59 and 21,107.17 is: 31,674.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,043.17 : 87,103.59 = 21,107.17 : x
  2. Step 2: Convert to fraction form
    58,043.17/87,103.59 = 21,107.17/x
  3. Step 3: Cross multiply
    58,043.17x = 87,103.59 × 21,107.17
  4. Step 4: Simplify right side
    58,043.17x = 1,838,510,281.74
  5. Step 5: Solve for x
    x = 1,838,510,281.74/58,043.17
  6. Step 6: Final answer
    x = 31,674.88

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1.5x scale

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.