Home / 98,830.10-136,383.90-53,507.72

Finding the Fourth Proportional to 98,830.10, 136,383.90 and 53,507.72

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Solution

The fourth proportional to 98,830.10, 136,383.90 and 53,507.72 is: 73,839.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,830.10 : 136,383.90 = 53,507.72 : x
  2. Step 2: Convert to fraction form
    98,830.10/136,383.90 = 53,507.72/x
  3. Step 3: Cross multiply
    98,830.10x = 136,383.90 × 53,507.72
  4. Step 4: Simplify right side
    98,830.10x = 7,297,591,533.71
  5. Step 5: Solve for x
    x = 7,297,591,533.71/98,830.10
  6. Step 6: Final answer
    x = 73,839.77

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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.