Home / 98,739.46-136,259.89-53,417.31

Finding the Fourth Proportional to 98,739.46, 136,259.89 and 53,417.31

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Solution

The fourth proportional to 98,739.46, 136,259.89 and 53,417.31 is: 73,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,739.46 : 136,259.89 = 53,417.31 : x
  2. Step 2: Convert to fraction form
    98,739.46/136,259.89 = 53,417.31/x
  3. Step 3: Cross multiply
    98,739.46x = 136,259.89 × 53,417.31
  4. Step 4: Simplify right side
    98,739.46x = 7,278,636,140.18
  5. Step 5: Solve for x
    x = 7,278,636,140.18/98,739.46
  6. Step 6: Final answer
    x = 73,715.58

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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.