Home / 56,333.81-77,740.66-30,840.10

Finding the Fourth Proportional to 56,333.81, 77,740.66 and 30,840.10

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Solution

The fourth proportional to 56,333.81, 77,740.66 and 30,840.10 is: 42,559.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,333.81 : 77,740.66 = 30,840.10 : x
  2. Step 2: Convert to fraction form
    56,333.81/77,740.66 = 30,840.10/x
  3. Step 3: Cross multiply
    56,333.81x = 77,740.66 × 30,840.10
  4. Step 4: Simplify right side
    56,333.81x = 2,397,529,572.66
  5. Step 5: Solve for x
    x = 2,397,529,572.66/56,333.81
  6. Step 6: Final answer
    x = 42,559.33

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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.