Home / 98,477.83-135,709.79-71,577.73

Finding the Fourth Proportional to 98,477.83, 135,709.79 and 71,577.73

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Solution

The fourth proportional to 98,477.83, 135,709.79 and 71,577.73 is: 98,639.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,477.83 : 135,709.79 = 71,577.73 : x
  2. Step 2: Convert to fraction form
    98,477.83/135,709.79 = 71,577.73/x
  3. Step 3: Cross multiply
    98,477.83x = 135,709.79 × 71,577.73
  4. Step 4: Simplify right side
    98,477.83x = 9,713,798,706.98
  5. Step 5: Solve for x
    x = 9,713,798,706.98/98,477.83
  6. Step 6: Final answer
    x = 98,639.45

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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.