Home / 66,446.14-99,669.21-31,389.34

Finding the Fourth Proportional to 66,446.14, 99,669.21 and 31,389.34

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Solution

The fourth proportional to 66,446.14, 99,669.21 and 31,389.34 is: 47,084.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,446.14 : 99,669.21 = 31,389.34 : x
  2. Step 2: Convert to fraction form
    66,446.14/99,669.21 = 31,389.34/x
  3. Step 3: Cross multiply
    66,446.14x = 99,669.21 × 31,389.34
  4. Step 4: Simplify right side
    66,446.14x = 3,128,550,720.22
  5. Step 5: Solve for x
    x = 3,128,550,720.22/66,446.14
  6. Step 6: Final answer
    x = 47,084.01

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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.