Home / 66,111.78-91,250.46-40,624.32

Finding the Fourth Proportional to 66,111.78, 91,250.46 and 40,624.32

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Solution

The fourth proportional to 66,111.78, 91,250.46 and 40,624.32 is: 56,071.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,111.78 : 91,250.46 = 40,624.32 : x
  2. Step 2: Convert to fraction form
    66,111.78/91,250.46 = 40,624.32/x
  3. Step 3: Cross multiply
    66,111.78x = 91,250.46 × 40,624.32
  4. Step 4: Simplify right side
    66,111.78x = 3,706,987,887.19
  5. Step 5: Solve for x
    x = 3,706,987,887.19/66,111.78
  6. Step 6: Final answer
    x = 56,071.52

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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.