Home / 85,330.12-117,754.74-47,090.02

Finding the Fourth Proportional to 85,330.12, 117,754.74 and 47,090.02

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Solution

The fourth proportional to 85,330.12, 117,754.74 and 47,090.02 is: 64,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,330.12 : 117,754.74 = 47,090.02 : x
  2. Step 2: Convert to fraction form
    85,330.12/117,754.74 = 47,090.02/x
  3. Step 3: Cross multiply
    85,330.12x = 117,754.74 × 47,090.02
  4. Step 4: Simplify right side
    85,330.12x = 5,545,072,767.31
  5. Step 5: Solve for x
    x = 5,545,072,767.31/85,330.12
  6. Step 6: Final answer
    x = 64,983.77

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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.