Home / 66,036.47-99,065.63-21,651.30

Finding the Fourth Proportional to 66,036.47, 99,065.63 and 21,651.30

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Solution

The fourth proportional to 66,036.47, 99,065.63 and 21,651.30 is: 32,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,036.47 : 99,065.63 = 21,651.30 : x
  2. Step 2: Convert to fraction form
    66,036.47/99,065.63 = 21,651.30/x
  3. Step 3: Cross multiply
    66,036.47x = 99,065.63 × 21,651.30
  4. Step 4: Simplify right side
    66,036.47x = 2,144,899,728.95
  5. Step 5: Solve for x
    x = 2,144,899,728.95/66,036.47
  6. Step 6: Final answer
    x = 32,480.54

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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.