Home / 98,739.56-136,260.40-53,417.58

Finding the Fourth Proportional to 98,739.56, 136,260.40 and 53,417.58

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Solution

The fourth proportional to 98,739.56, 136,260.40 and 53,417.58 is: 73,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,739.56 : 136,260.40 = 53,417.58 : x
  2. Step 2: Convert to fraction form
    98,739.56/136,260.40 = 53,417.58/x
  3. Step 3: Cross multiply
    98,739.56x = 136,260.40 × 53,417.58
  4. Step 4: Simplify right side
    98,739.56x = 7,278,700,423.71
  5. Step 5: Solve for x
    x = 7,278,700,423.71/98,739.56
  6. Step 6: Final answer
    x = 73,716.15

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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.