Home / 93,315.34-128,777.79-57,022.66

Finding the Fourth Proportional to 93,315.34, 128,777.79 and 57,022.66

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Solution

The fourth proportional to 93,315.34, 128,777.79 and 57,022.66 is: 78,692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,315.34 : 128,777.79 = 57,022.66 : x
  2. Step 2: Convert to fraction form
    93,315.34/128,777.79 = 57,022.66/x
  3. Step 3: Cross multiply
    93,315.34x = 128,777.79 × 57,022.66
  4. Step 4: Simplify right side
    93,315.34x = 7,343,252,134.72
  5. Step 5: Solve for x
    x = 7,343,252,134.72/93,315.34
  6. Step 6: Final answer
    x = 78,692.87

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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.