Home / 77,953.28-116,875.49-39,928.70

Finding the Fourth Proportional to 77,953.28, 116,875.49 and 39,928.70

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Solution

The fourth proportional to 77,953.28, 116,875.49 and 39,928.70 is: 59,865.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,953.28 : 116,875.49 = 39,928.70 : x
  2. Step 2: Convert to fraction form
    77,953.28/116,875.49 = 39,928.70/x
  3. Step 3: Cross multiply
    77,953.28x = 116,875.49 × 39,928.70
  4. Step 4: Simplify right side
    77,953.28x = 4,666,686,377.56
  5. Step 5: Solve for x
    x = 4,666,686,377.56/77,953.28
  6. Step 6: Final answer
    x = 59,865.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.