Home / 98,711.40-136,221.30-53,389.44

Finding the Fourth Proportional to 98,711.40, 136,221.30 and 53,389.44

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Solution

The fourth proportional to 98,711.40, 136,221.30 and 53,389.44 is: 73,677.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,711.40 : 136,221.30 = 53,389.44 : x
  2. Step 2: Convert to fraction form
    98,711.40/136,221.30 = 53,389.44/x
  3. Step 3: Cross multiply
    98,711.40x = 136,221.30 × 53,389.44
  4. Step 4: Simplify right side
    98,711.40x = 7,272,778,923.07
  5. Step 5: Solve for x
    x = 7,272,778,923.07/98,711.40
  6. Step 6: Final answer
    x = 73,677.19

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1.5x scale

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.