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Finding the Fourth Proportional to 76,663.04, 114,994.02 and 21,259.04

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Solution

The fourth proportional to 76,663.04, 114,994.02 and 21,259.04 is: 31,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,663.04 : 114,994.02 = 21,259.04 : x
  2. Step 2: Convert to fraction form
    76,663.04/114,994.02 = 21,259.04/x
  3. Step 3: Cross multiply
    76,663.04x = 114,994.02 × 21,259.04
  4. Step 4: Simplify right side
    76,663.04x = 2,444,662,470.94
  5. Step 5: Solve for x
    x = 2,444,662,470.94/76,663.04
  6. Step 6: Final answer
    x = 31,888.41

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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.