Home / 85,300.64-117,715.04-47,577.32

Finding the Fourth Proportional to 85,300.64, 117,715.04 and 47,577.32

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Solution

The fourth proportional to 85,300.64, 117,715.04 and 47,577.32 is: 65,656.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,300.64 : 117,715.04 = 47,577.32 : x
  2. Step 2: Convert to fraction form
    85,300.64/117,715.04 = 47,577.32/x
  3. Step 3: Cross multiply
    85,300.64x = 117,715.04 × 47,577.32
  4. Step 4: Simplify right side
    85,300.64x = 5,600,566,126.89
  5. Step 5: Solve for x
    x = 5,600,566,126.89/85,300.64
  6. Step 6: Final answer
    x = 65,656.79

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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.