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Finding the Fourth Proportional to 58,144.40, 87,216.93 and 20,705.93

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Solution

The fourth proportional to 58,144.40, 87,216.93 and 20,705.93 is: 31,059.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,144.40 : 87,216.93 = 20,705.93 : x
  2. Step 2: Convert to fraction form
    58,144.40/87,216.93 = 20,705.93/x
  3. Step 3: Cross multiply
    58,144.40x = 87,216.93 × 20,705.93
  4. Step 4: Simplify right side
    58,144.40x = 1,805,907,647.39
  5. Step 5: Solve for x
    x = 1,805,907,647.39/58,144.40
  6. Step 6: Final answer
    x = 31,059.01

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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.