Home / 58,903.32-81,320.10-38,818.56

Finding the Fourth Proportional to 58,903.32, 81,320.10 and 38,818.56

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Solution

The fourth proportional to 58,903.32, 81,320.10 and 38,818.56 is: 53,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,903.32 : 81,320.10 = 38,818.56 : x
  2. Step 2: Convert to fraction form
    58,903.32/81,320.10 = 38,818.56/x
  3. Step 3: Cross multiply
    58,903.32x = 81,320.10 × 38,818.56
  4. Step 4: Simplify right side
    58,903.32x = 3,156,729,181.06
  5. Step 5: Solve for x
    x = 3,156,729,181.06/58,903.32
  6. Step 6: Final answer
    x = 53,591.70

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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.