Home / 66,446.10-99,688.35-19,700.10

Finding the Fourth Proportional to 66,446.10, 99,688.35 and 19,700.10

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Solution

The fourth proportional to 66,446.10, 99,688.35 and 19,700.10 is: 29,555.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,446.10 : 99,688.35 = 19,700.10 : x
  2. Step 2: Convert to fraction form
    66,446.10/99,688.35 = 19,700.10/x
  3. Step 3: Cross multiply
    66,446.10x = 99,688.35 × 19,700.10
  4. Step 4: Simplify right side
    66,446.10x = 1,963,870,463.84
  5. Step 5: Solve for x
    x = 1,963,870,463.84/66,446.10
  6. Step 6: Final answer
    x = 29,555.84

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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.