Home / 96,918.12-145,393.56-30,345.12

Finding the Fourth Proportional to 96,918.12, 145,393.56 and 30,345.12

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Solution

The fourth proportional to 96,918.12, 145,393.56 and 30,345.12 is: 45,522.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,918.12 : 145,393.56 = 30,345.12 : x
  2. Step 2: Convert to fraction form
    96,918.12/145,393.56 = 30,345.12/x
  3. Step 3: Cross multiply
    96,918.12x = 145,393.56 × 30,345.12
  4. Step 4: Simplify right side
    96,918.12x = 4,411,985,025.43
  5. Step 5: Solve for x
    x = 4,411,985,025.43/96,918.12
  6. Step 6: Final answer
    x = 45,522.81

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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.