Home / 51,968.82-77,983.98-21,981.36

Finding the Fourth Proportional to 51,968.82, 77,983.98 and 21,981.36

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Solution

The fourth proportional to 51,968.82, 77,983.98 and 21,981.36 is: 32,985.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,968.82 : 77,983.98 = 21,981.36 : x
  2. Step 2: Convert to fraction form
    51,968.82/77,983.98 = 21,981.36/x
  3. Step 3: Cross multiply
    51,968.82x = 77,983.98 × 21,981.36
  4. Step 4: Simplify right side
    51,968.82x = 1,714,193,938.61
  5. Step 5: Solve for x
    x = 1,714,193,938.61/51,968.82
  6. Step 6: Final answer
    x = 32,985.05

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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.