Home / 66,255.53-99,345.52-45,221.03

Finding the Fourth Proportional to 66,255.53, 99,345.52 and 45,221.03

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Solution

The fourth proportional to 66,255.53, 99,345.52 and 45,221.03 is: 67,805.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,255.53 : 99,345.52 = 45,221.03 : x
  2. Step 2: Convert to fraction form
    66,255.53/99,345.52 = 45,221.03/x
  3. Step 3: Cross multiply
    66,255.53x = 99,345.52 × 45,221.03
  4. Step 4: Simplify right side
    66,255.53x = 4,492,506,672.63
  5. Step 5: Solve for x
    x = 4,492,506,672.63/66,255.53
  6. Step 6: Final answer
    x = 67,805.77

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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.