Home / 98,869.41-136,439.74-53,547.39

Finding the Fourth Proportional to 98,869.41, 136,439.74 and 53,547.39

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Solution

The fourth proportional to 98,869.41, 136,439.74 and 53,547.39 is: 73,895.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,869.41 : 136,439.74 = 53,547.39 : x
  2. Step 2: Convert to fraction form
    98,869.41/136,439.74 = 53,547.39/x
  3. Step 3: Cross multiply
    98,869.41x = 136,439.74 × 53,547.39
  4. Step 4: Simplify right side
    98,869.41x = 7,305,991,969.28
  5. Step 5: Solve for x
    x = 7,305,991,969.28/98,869.41
  6. Step 6: Final answer
    x = 73,895.37

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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.