Home / 77,402.16-116,103.36-21,243.03

Finding the Fourth Proportional to 77,402.16, 116,103.36 and 21,243.03

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Solution

The fourth proportional to 77,402.16, 116,103.36 and 21,243.03 is: 31,864.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,402.16 : 116,103.36 = 21,243.03 : x
  2. Step 2: Convert to fraction form
    77,402.16/116,103.36 = 21,243.03/x
  3. Step 3: Cross multiply
    77,402.16x = 116,103.36 × 21,243.03
  4. Step 4: Simplify right side
    77,402.16x = 2,466,387,159.58
  5. Step 5: Solve for x
    x = 2,466,387,159.58/77,402.16
  6. Step 6: Final answer
    x = 31,864.58

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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.