Home / 98,443.59-135,804.87-64,437.09

Finding the Fourth Proportional to 98,443.59, 135,804.87 and 64,437.09

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Solution

The fourth proportional to 98,443.59, 135,804.87 and 64,437.09 is: 88,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,443.59 : 135,804.87 = 64,437.09 : x
  2. Step 2: Convert to fraction form
    98,443.59/135,804.87 = 64,437.09/x
  3. Step 3: Cross multiply
    98,443.59x = 135,804.87 × 64,437.09
  4. Step 4: Simplify right side
    98,443.59x = 8,750,870,630.63
  5. Step 5: Solve for x
    x = 8,750,870,630.63/98,443.59
  6. Step 6: Final answer
    x = 88,892.23

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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.