Home / 98,830.68-136,385.38-53,507.48

Finding the Fourth Proportional to 98,830.68, 136,385.38 and 53,507.48

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Solution

The fourth proportional to 98,830.68, 136,385.38 and 53,507.48 is: 73,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,830.68 : 136,385.38 = 53,507.48 : x
  2. Step 2: Convert to fraction form
    98,830.68/136,385.38 = 53,507.48/x
  3. Step 3: Cross multiply
    98,830.68x = 136,385.38 × 53,507.48
  4. Step 4: Simplify right side
    98,830.68x = 7,297,637,992.64
  5. Step 5: Solve for x
    x = 7,297,637,992.64/98,830.68
  6. Step 6: Final answer
    x = 73,839.80

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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.