Home / 56,129.42-77,459.04-30,635.98

Finding the Fourth Proportional to 56,129.42, 77,459.04 and 30,635.98

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Solution

The fourth proportional to 56,129.42, 77,459.04 and 30,635.98 is: 42,277.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,129.42 : 77,459.04 = 30,635.98 : x
  2. Step 2: Convert to fraction form
    56,129.42/77,459.04 = 30,635.98/x
  3. Step 3: Cross multiply
    56,129.42x = 77,459.04 × 30,635.98
  4. Step 4: Simplify right side
    56,129.42x = 2,373,033,600.26
  5. Step 5: Solve for x
    x = 2,373,033,600.26/56,129.42
  6. Step 6: Final answer
    x = 42,277.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.