Home / 66,039.34-99,065.94-28,603.20

Finding the Fourth Proportional to 66,039.34, 99,065.94 and 28,603.20

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Solution

The fourth proportional to 66,039.34, 99,065.94 and 28,603.20 is: 42,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,039.34 : 99,065.94 = 28,603.20 : x
  2. Step 2: Convert to fraction form
    66,039.34/99,065.94 = 28,603.20/x
  3. Step 3: Cross multiply
    66,039.34x = 99,065.94 × 28,603.20
  4. Step 4: Simplify right side
    66,039.34x = 2,833,602,895.01
  5. Step 5: Solve for x
    x = 2,833,602,895.01/66,039.34
  6. Step 6: Final answer
    x = 42,907.80

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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.