Home / 56,122.77-77,449.03-30,972.27

Finding the Fourth Proportional to 56,122.77, 77,449.03 and 30,972.27

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Solution

The fourth proportional to 56,122.77, 77,449.03 and 30,972.27 is: 42,741.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,122.77 : 77,449.03 = 30,972.27 : x
  2. Step 2: Convert to fraction form
    56,122.77/77,449.03 = 30,972.27/x
  3. Step 3: Cross multiply
    56,122.77x = 77,449.03 × 30,972.27
  4. Step 4: Simplify right side
    56,122.77x = 2,398,772,268.40
  5. Step 5: Solve for x
    x = 2,398,772,268.40/56,122.77
  6. Step 6: Final answer
    x = 42,741.52

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1.5x scale

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.