Home / 71,147.02-98,181.48-39,315.22

Finding the Fourth Proportional to 71,147.02, 98,181.48 and 39,315.22

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Solution

The fourth proportional to 71,147.02, 98,181.48 and 39,315.22 is: 54,254.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,147.02 : 98,181.48 = 39,315.22 : x
  2. Step 2: Convert to fraction form
    71,147.02/98,181.48 = 39,315.22/x
  3. Step 3: Cross multiply
    71,147.02x = 98,181.48 × 39,315.22
  4. Step 4: Simplify right side
    71,147.02x = 3,860,026,486.13
  5. Step 5: Solve for x
    x = 3,860,026,486.13/71,147.02
  6. Step 6: Final answer
    x = 54,254.23

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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.