Home / 51,840.55-77,700.14-19,798.63

Finding the Fourth Proportional to 51,840.55, 77,700.14 and 19,798.63

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Solution

The fourth proportional to 51,840.55, 77,700.14 and 19,798.63 is: 29,674.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,840.55 : 77,700.14 = 19,798.63 : x
  2. Step 2: Convert to fraction form
    51,840.55/77,700.14 = 19,798.63/x
  3. Step 3: Cross multiply
    51,840.55x = 77,700.14 × 19,798.63
  4. Step 4: Simplify right side
    51,840.55x = 1,538,356,103.81
  5. Step 5: Solve for x
    x = 1,538,356,103.81/51,840.55
  6. Step 6: Final answer
    x = 29,674.76

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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.