Home / 55,991.51-77,346.65-38,987.24

Finding the Fourth Proportional to 55,991.51, 77,346.65 and 38,987.24

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Solution

The fourth proportional to 55,991.51, 77,346.65 and 38,987.24 is: 53,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,991.51 : 77,346.65 = 38,987.24 : x
  2. Step 2: Convert to fraction form
    55,991.51/77,346.65 = 38,987.24/x
  3. Step 3: Cross multiply
    55,991.51x = 77,346.65 × 38,987.24
  4. Step 4: Simplify right side
    55,991.51x = 3,015,531,825.08
  5. Step 5: Solve for x
    x = 3,015,531,825.08/55,991.51
  6. Step 6: Final answer
    x = 53,856.95

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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.