Home / 71,148.04-98,181.10-39,316.25

Finding the Fourth Proportional to 71,148.04, 98,181.10 and 39,316.25

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Solution

The fourth proportional to 71,148.04, 98,181.10 and 39,316.25 is: 54,254.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,148.04 : 98,181.10 = 39,316.25 : x
  2. Step 2: Convert to fraction form
    71,148.04/98,181.10 = 39,316.25/x
  3. Step 3: Cross multiply
    71,148.04x = 98,181.10 × 39,316.25
  4. Step 4: Simplify right side
    71,148.04x = 3,860,112,672.88
  5. Step 5: Solve for x
    x = 3,860,112,672.88/71,148.04
  6. Step 6: Final answer
    x = 54,254.66

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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.