Home / 85,621.50-118,157.69-47,895.74

Finding the Fourth Proportional to 85,621.50, 118,157.69 and 47,895.74

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Solution

The fourth proportional to 85,621.50, 118,157.69 and 47,895.74 is: 66,096.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,621.50 : 118,157.69 = 47,895.74 : x
  2. Step 2: Convert to fraction form
    85,621.50/118,157.69 = 47,895.74/x
  3. Step 3: Cross multiply
    85,621.50x = 118,157.69 × 47,895.74
  4. Step 4: Simplify right side
    85,621.50x = 5,659,249,999.24
  5. Step 5: Solve for x
    x = 5,659,249,999.24/85,621.50
  6. Step 6: Final answer
    x = 66,096.13

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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.