Home / 93,720.16-129,335.69-51,279.60

Finding the Fourth Proportional to 93,720.16, 129,335.69 and 51,279.60

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Solution

The fourth proportional to 93,720.16, 129,335.69 and 51,279.60 is: 70,766.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,720.16 : 129,335.69 = 51,279.60 : x
  2. Step 2: Convert to fraction form
    93,720.16/129,335.69 = 51,279.60/x
  3. Step 3: Cross multiply
    93,720.16x = 129,335.69 × 51,279.60
  4. Step 4: Simplify right side
    93,720.16x = 6,632,282,448.92
  5. Step 5: Solve for x
    x = 6,632,282,448.92/93,720.16
  6. Step 6: Final answer
    x = 70,766.87

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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.