Home / 66,470.04-99,705.10-19,722.50

Finding the Fourth Proportional to 66,470.04, 99,705.10 and 19,722.50

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Solution

The fourth proportional to 66,470.04, 99,705.10 and 19,722.50 is: 29,583.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,470.04 : 99,705.10 = 19,722.50 : x
  2. Step 2: Convert to fraction form
    66,470.04/99,705.10 = 19,722.50/x
  3. Step 3: Cross multiply
    66,470.04x = 99,705.10 × 19,722.50
  4. Step 4: Simplify right side
    66,470.04x = 1,966,433,834.75
  5. Step 5: Solve for x
    x = 1,966,433,834.75/66,470.04
  6. Step 6: Final answer
    x = 29,583.76

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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.