Home / 85,620.04-118,149.24-47,887

Finding the Fourth Proportional to 85,620.04, 118,149.24 and 47,887

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Solution

The fourth proportional to 85,620.04, 118,149.24 and 47,887 is: 66,080.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,620.04 : 118,149.24 = 47,887 : x
  2. Step 2: Convert to fraction form
    85,620.04/118,149.24 = 47,887/x
  3. Step 3: Cross multiply
    85,620.04x = 118,149.24 × 47,887
  4. Step 4: Simplify right side
    85,620.04x = 5,657,812,655.88
  5. Step 5: Solve for x
    x = 5,657,812,655.88/85,620.04
  6. Step 6: Final answer
    x = 66,080.47

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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.