Home / 63,345.06-94,990.86-18,978.12

Finding the Fourth Proportional to 63,345.06, 94,990.86 and 18,978.12

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Solution

The fourth proportional to 63,345.06, 94,990.86 and 18,978.12 is: 28,459.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,345.06 : 94,990.86 = 18,978.12 : x
  2. Step 2: Convert to fraction form
    63,345.06/94,990.86 = 18,978.12/x
  3. Step 3: Cross multiply
    63,345.06x = 94,990.86 × 18,978.12
  4. Step 4: Simplify right side
    63,345.06x = 1,802,747,939.98
  5. Step 5: Solve for x
    x = 1,802,747,939.98/63,345.06
  6. Step 6: Final answer
    x = 28,459.17

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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.