Home / 45,402.48-68,110.12-19,090.80

Finding the Fourth Proportional to 45,402.48, 68,110.12 and 19,090.80

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Solution

The fourth proportional to 45,402.48, 68,110.12 and 19,090.80 is: 28,638.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,402.48 : 68,110.12 = 19,090.80 : x
  2. Step 2: Convert to fraction form
    45,402.48/68,110.12 = 19,090.80/x
  3. Step 3: Cross multiply
    45,402.48x = 68,110.12 × 19,090.80
  4. Step 4: Simplify right side
    45,402.48x = 1,300,276,678.90
  5. Step 5: Solve for x
    x = 1,300,276,678.90/45,402.48
  6. Step 6: Final answer
    x = 28,638.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.