Home / 98,798.06-136,342.41-56,359.10

Finding the Fourth Proportional to 98,798.06, 136,342.41 and 56,359.10

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Solution

The fourth proportional to 98,798.06, 136,342.41 and 56,359.10 is: 77,776.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,798.06 : 136,342.41 = 56,359.10 : x
  2. Step 2: Convert to fraction form
    98,798.06/136,342.41 = 56,359.10/x
  3. Step 3: Cross multiply
    98,798.06x = 136,342.41 × 56,359.10
  4. Step 4: Simplify right side
    98,798.06x = 7,684,135,519.43
  5. Step 5: Solve for x
    x = 7,684,135,519.43/98,798.06
  6. Step 6: Final answer
    x = 77,776.18

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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.