Home / 57,156.66-78,903.54-38,068.20

Finding the Fourth Proportional to 57,156.66, 78,903.54 and 38,068.20

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Solution

The fourth proportional to 57,156.66, 78,903.54 and 38,068.20 is: 52,552.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,156.66 : 78,903.54 = 38,068.20 : x
  2. Step 2: Convert to fraction form
    57,156.66/78,903.54 = 38,068.20/x
  3. Step 3: Cross multiply
    57,156.66x = 78,903.54 × 38,068.20
  4. Step 4: Simplify right side
    57,156.66x = 3,003,715,741.43
  5. Step 5: Solve for x
    x = 3,003,715,741.43/57,156.66
  6. Step 6: Final answer
    x = 52,552.33

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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.