Home / 89,880.40-134,820.60-43,109.20

Finding the Fourth Proportional to 89,880.40, 134,820.60 and 43,109.20

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Solution

The fourth proportional to 89,880.40, 134,820.60 and 43,109.20 is: 64,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,880.40 : 134,820.60 = 43,109.20 : x
  2. Step 2: Convert to fraction form
    89,880.40/134,820.60 = 43,109.20/x
  3. Step 3: Cross multiply
    89,880.40x = 134,820.60 × 43,109.20
  4. Step 4: Simplify right side
    89,880.40x = 5,812,008,209.52
  5. Step 5: Solve for x
    x = 5,812,008,209.52/89,880.40
  6. Step 6: Final answer
    x = 64,663.80

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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.