Home / 98,441.51-135,849.69-55,421.73

Finding the Fourth Proportional to 98,441.51, 135,849.69 and 55,421.73

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Solution

The fourth proportional to 98,441.51, 135,849.69 and 55,421.73 is: 76,482.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,441.51 : 135,849.69 = 55,421.73 : x
  2. Step 2: Convert to fraction form
    98,441.51/135,849.69 = 55,421.73/x
  3. Step 3: Cross multiply
    98,441.51x = 135,849.69 × 55,421.73
  4. Step 4: Simplify right side
    98,441.51x = 7,529,024,839.76
  5. Step 5: Solve for x
    x = 7,529,024,839.76/98,441.51
  6. Step 6: Final answer
    x = 76,482.22

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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.