Home / 56,122.49-77,448.88-30,971.81

Finding the Fourth Proportional to 56,122.49, 77,448.88 and 30,971.81

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Solution

The fourth proportional to 56,122.49, 77,448.88 and 30,971.81 is: 42,741.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,122.49 : 77,448.88 = 30,971.81 : x
  2. Step 2: Convert to fraction form
    56,122.49/77,448.88 = 30,971.81/x
  3. Step 3: Cross multiply
    56,122.49x = 77,448.88 × 30,971.81
  4. Step 4: Simplify right side
    56,122.49x = 2,398,732,228.41
  5. Step 5: Solve for x
    x = 2,398,732,228.41/56,122.49
  6. Step 6: Final answer
    x = 42,741.01

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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.