Home / 85,356.48-117,842.40-61,544.64

Finding the Fourth Proportional to 85,356.48, 117,842.40 and 61,544.64

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Solution

The fourth proportional to 85,356.48, 117,842.40 and 61,544.64 is: 84,967.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,356.48 : 117,842.40 = 61,544.64 : x
  2. Step 2: Convert to fraction form
    85,356.48/117,842.40 = 61,544.64/x
  3. Step 3: Cross multiply
    85,356.48x = 117,842.40 × 61,544.64
  4. Step 4: Simplify right side
    85,356.48x = 7,252,568,084.74
  5. Step 5: Solve for x
    x = 7,252,568,084.74/85,356.48
  6. Step 6: Final answer
    x = 84,967.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.