Home / 55,987.81-77,263.18-30,837.31

Finding the Fourth Proportional to 55,987.81, 77,263.18 and 30,837.31

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Solution

The fourth proportional to 55,987.81, 77,263.18 and 30,837.31 is: 42,555.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,987.81 : 77,263.18 = 30,837.31 : x
  2. Step 2: Convert to fraction form
    55,987.81/77,263.18 = 30,837.31/x
  3. Step 3: Cross multiply
    55,987.81x = 77,263.18 × 30,837.31
  4. Step 4: Simplify right side
    55,987.81x = 2,382,588,362.99
  5. Step 5: Solve for x
    x = 2,382,588,362.99/55,987.81
  6. Step 6: Final answer
    x = 42,555.49

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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.