Home / 98,437.40-135,796.38-64,430.92

Finding the Fourth Proportional to 98,437.40, 135,796.38 and 64,430.92

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Solution

The fourth proportional to 98,437.40, 135,796.38 and 64,430.92 is: 88,883.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,437.40 : 135,796.38 = 64,430.92 : x
  2. Step 2: Convert to fraction form
    98,437.40/135,796.38 = 64,430.92/x
  3. Step 3: Cross multiply
    98,437.40x = 135,796.38 × 64,430.92
  4. Step 4: Simplify right side
    98,437.40x = 8,749,485,696.07
  5. Step 5: Solve for x
    x = 8,749,485,696.07/98,437.40
  6. Step 6: Final answer
    x = 88,883.75

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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.