Home / 77,990.77-116,995.88-25,386.13

Finding the Fourth Proportional to 77,990.77, 116,995.88 and 25,386.13

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Solution

The fourth proportional to 77,990.77, 116,995.88 and 25,386.13 is: 38,082.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,990.77 : 116,995.88 = 25,386.13 : x
  2. Step 2: Convert to fraction form
    77,990.77/116,995.88 = 25,386.13/x
  3. Step 3: Cross multiply
    77,990.77x = 116,995.88 × 25,386.13
  4. Step 4: Simplify right side
    77,990.77x = 2,970,072,619.14
  5. Step 5: Solve for x
    x = 2,970,072,619.14/77,990.77
  6. Step 6: Final answer
    x = 38,082.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.