Home / 98,312.19-135,666.79-55,290.52

Finding the Fourth Proportional to 98,312.19, 135,666.79 and 55,290.52

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Solution

The fourth proportional to 98,312.19, 135,666.79 and 55,290.52 is: 76,298.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,312.19 : 135,666.79 = 55,290.52 : x
  2. Step 2: Convert to fraction form
    98,312.19/135,666.79 = 55,290.52/x
  3. Step 3: Cross multiply
    98,312.19x = 135,666.79 × 55,290.52
  4. Step 4: Simplify right side
    98,312.19x = 7,501,087,365.83
  5. Step 5: Solve for x
    x = 7,501,087,365.83/98,312.19
  6. Step 6: Final answer
    x = 76,298.65

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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.