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Finding the Fourth Proportional to 98,900.97, 136,482.77 and 53,579.84

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Solution

The fourth proportional to 98,900.97, 136,482.77 and 53,579.84 is: 73,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,900.97 : 136,482.77 = 53,579.84 : x
  2. Step 2: Convert to fraction form
    98,900.97/136,482.77 = 53,579.84/x
  3. Step 3: Cross multiply
    98,900.97x = 136,482.77 × 53,579.84
  4. Step 4: Simplify right side
    98,900.97x = 7,312,724,430.89
  5. Step 5: Solve for x
    x = 7,312,724,430.89/98,900.97
  6. Step 6: Final answer
    x = 73,939.87

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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.