Home / 85,718.02-118,290.09-47,992.90

Finding the Fourth Proportional to 85,718.02, 118,290.09 and 47,992.90

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Solution

The fourth proportional to 85,718.02, 118,290.09 and 47,992.90 is: 66,229.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,718.02 : 118,290.09 = 47,992.90 : x
  2. Step 2: Convert to fraction form
    85,718.02/118,290.09 = 47,992.90/x
  3. Step 3: Cross multiply
    85,718.02x = 118,290.09 × 47,992.90
  4. Step 4: Simplify right side
    85,718.02x = 5,677,084,460.36
  5. Step 5: Solve for x
    x = 5,677,084,460.36/85,718.02
  6. Step 6: Final answer
    x = 66,229.77

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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.