Home / 66,570.19-99,904.49-31,509.84

Finding the Fourth Proportional to 66,570.19, 99,904.49 and 31,509.84

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Solution

The fourth proportional to 66,570.19, 99,904.49 and 31,509.84 is: 47,288.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,570.19 : 99,904.49 = 31,509.84 : x
  2. Step 2: Convert to fraction form
    66,570.19/99,904.49 = 31,509.84/x
  3. Step 3: Cross multiply
    66,570.19x = 99,904.49 × 31,509.84
  4. Step 4: Simplify right side
    66,570.19x = 3,147,974,830.44
  5. Step 5: Solve for x
    x = 3,147,974,830.44/66,570.19
  6. Step 6: Final answer
    x = 47,288.06

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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.