Home / 93,459.08-128,972.60-57,634.76

Finding the Fourth Proportional to 93,459.08, 128,972.60 and 57,634.76

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Solution

The fourth proportional to 93,459.08, 128,972.60 and 57,634.76 is: 79,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,459.08 : 128,972.60 = 57,634.76 : x
  2. Step 2: Convert to fraction form
    93,459.08/128,972.60 = 57,634.76/x
  3. Step 3: Cross multiply
    93,459.08x = 128,972.60 × 57,634.76
  4. Step 4: Simplify right side
    93,459.08x = 7,433,304,847.58
  5. Step 5: Solve for x
    x = 7,433,304,847.58/93,459.08
  6. Step 6: Final answer
    x = 79,535.40

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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.