Home / 66,643.60-99,962.94-16,724.08

Finding the Fourth Proportional to 66,643.60, 99,962.94 and 16,724.08

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Solution

The fourth proportional to 66,643.60, 99,962.94 and 16,724.08 is: 25,085.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,643.60 : 99,962.94 = 16,724.08 : x
  2. Step 2: Convert to fraction form
    66,643.60/99,962.94 = 16,724.08/x
  3. Step 3: Cross multiply
    66,643.60x = 99,962.94 × 16,724.08
  4. Step 4: Simplify right side
    66,643.60x = 1,671,788,205.60
  5. Step 5: Solve for x
    x = 1,671,788,205.60/66,643.60
  6. Step 6: Final answer
    x = 25,085.50

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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.