Home / 51,490.02-77,278.77-20,347.14

Finding the Fourth Proportional to 51,490.02, 77,278.77 and 20,347.14

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Solution

The fourth proportional to 51,490.02, 77,278.77 and 20,347.14 is: 30,537.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,490.02 : 77,278.77 = 20,347.14 : x
  2. Step 2: Convert to fraction form
    51,490.02/77,278.77 = 20,347.14/x
  3. Step 3: Cross multiply
    51,490.02x = 77,278.77 × 20,347.14
  4. Step 4: Simplify right side
    51,490.02x = 1,572,401,952.22
  5. Step 5: Solve for x
    x = 1,572,401,952.22/51,490.02
  6. Step 6: Final answer
    x = 30,537.99

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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.