Home / 98,436.90-135,795.69-64,430.42

Finding the Fourth Proportional to 98,436.90, 135,795.69 and 64,430.42

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Solution

The fourth proportional to 98,436.90, 135,795.69 and 64,430.42 is: 88,883.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,436.90 : 135,795.69 = 64,430.42 : x
  2. Step 2: Convert to fraction form
    98,436.90/135,795.69 = 64,430.42/x
  3. Step 3: Cross multiply
    98,436.90x = 135,795.69 × 64,430.42
  4. Step 4: Simplify right side
    98,436.90x = 8,749,373,340.89
  5. Step 5: Solve for x
    x = 8,749,373,340.89/98,436.90
  6. Step 6: Final answer
    x = 88,883.06

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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.