Home / 98,089.89-135,368.49-57,805.35

Finding the Fourth Proportional to 98,089.89, 135,368.49 and 57,805.35

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Solution

The fourth proportional to 98,089.89, 135,368.49 and 57,805.35 is: 79,774.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,089.89 : 135,368.49 = 57,805.35 : x
  2. Step 2: Convert to fraction form
    98,089.89/135,368.49 = 57,805.35/x
  3. Step 3: Cross multiply
    98,089.89x = 135,368.49 × 57,805.35
  4. Step 4: Simplify right side
    98,089.89x = 7,825,022,411.09
  5. Step 5: Solve for x
    x = 7,825,022,411.09/98,089.89
  6. Step 6: Final answer
    x = 79,774.00

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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.