Home / 70,011.06-96,621-39,805.86

Finding the Fourth Proportional to 70,011.06, 96,621 and 39,805.86

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Solution

The fourth proportional to 70,011.06, 96,621 and 39,805.86 is: 54,935.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,011.06 : 96,621 = 39,805.86 : x
  2. Step 2: Convert to fraction form
    70,011.06/96,621 = 39,805.86/x
  3. Step 3: Cross multiply
    70,011.06x = 96,621 × 39,805.86
  4. Step 4: Simplify right side
    70,011.06x = 3,846,081,999.06
  5. Step 5: Solve for x
    x = 3,846,081,999.06/70,011.06
  6. Step 6: Final answer
    x = 54,935.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.