Home / 66,112.60-99,266.10-46,478.20

Finding the Fourth Proportional to 66,112.60, 99,266.10 and 46,478.20

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Solution

The fourth proportional to 66,112.60, 99,266.10 and 46,478.20 is: 69,785.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,112.60 : 99,266.10 = 46,478.20 : x
  2. Step 2: Convert to fraction form
    66,112.60/99,266.10 = 46,478.20/x
  3. Step 3: Cross multiply
    66,112.60x = 99,266.10 × 46,478.20
  4. Step 4: Simplify right side
    66,112.60x = 4,613,709,649.02
  5. Step 5: Solve for x
    x = 4,613,709,649.02/66,112.60
  6. Step 6: Final answer
    x = 69,785.63

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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.