Home / 93,154.60-128,546.10-50,712.28

Finding the Fourth Proportional to 93,154.60, 128,546.10 and 50,712.28

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Solution

The fourth proportional to 93,154.60, 128,546.10 and 50,712.28 is: 69,979.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,154.60 : 128,546.10 = 50,712.28 : x
  2. Step 2: Convert to fraction form
    93,154.60/128,546.10 = 50,712.28/x
  3. Step 3: Cross multiply
    93,154.60x = 128,546.10 × 50,712.28
  4. Step 4: Simplify right side
    93,154.60x = 6,518,865,816.11
  5. Step 5: Solve for x
    x = 6,518,865,816.11/93,154.60
  6. Step 6: Final answer
    x = 69,979.00

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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.