Home / 51,807.16-77,699.13-20,218.06

Finding the Fourth Proportional to 51,807.16, 77,699.13 and 20,218.06

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Solution

The fourth proportional to 51,807.16, 77,699.13 and 20,218.06 is: 30,322.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,807.16 : 77,699.13 = 20,218.06 : x
  2. Step 2: Convert to fraction form
    51,807.16/77,699.13 = 20,218.06/x
  3. Step 3: Cross multiply
    51,807.16x = 77,699.13 × 20,218.06
  4. Step 4: Simplify right side
    51,807.16x = 1,570,925,672.29
  5. Step 5: Solve for x
    x = 1,570,925,672.29/51,807.16
  6. Step 6: Final answer
    x = 30,322.56

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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.