Home / 93,023.08-128,154.88-64,679.56

Finding the Fourth Proportional to 93,023.08, 128,154.88 and 64,679.56

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Solution

The fourth proportional to 93,023.08, 128,154.88 and 64,679.56 is: 89,106.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,023.08 : 128,154.88 = 64,679.56 : x
  2. Step 2: Convert to fraction form
    93,023.08/128,154.88 = 64,679.56/x
  3. Step 3: Cross multiply
    93,023.08x = 128,154.88 × 64,679.56
  4. Step 4: Simplify right side
    93,023.08x = 8,289,001,250.25
  5. Step 5: Solve for x
    x = 8,289,001,250.25/93,023.08
  6. Step 6: Final answer
    x = 89,106.93

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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.