Home / 89,026.40-133,539.60-71,530.40

Finding the Fourth Proportional to 89,026.40, 133,539.60 and 71,530.40

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Solution

The fourth proportional to 89,026.40, 133,539.60 and 71,530.40 is: 107,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,026.40 : 133,539.60 = 71,530.40 : x
  2. Step 2: Convert to fraction form
    89,026.40/133,539.60 = 71,530.40/x
  3. Step 3: Cross multiply
    89,026.40x = 133,539.60 × 71,530.40
  4. Step 4: Simplify right side
    89,026.40x = 9,552,141,003.84
  5. Step 5: Solve for x
    x = 9,552,141,003.84/89,026.40
  6. Step 6: Final answer
    x = 107,295.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.