Home / 62,931.28-86,845.38-36,075.40

Finding the Fourth Proportional to 62,931.28, 86,845.38 and 36,075.40

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Solution

The fourth proportional to 62,931.28, 86,845.38 and 36,075.40 is: 49,784.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,931.28 : 86,845.38 = 36,075.40 : x
  2. Step 2: Convert to fraction form
    62,931.28/86,845.38 = 36,075.40/x
  3. Step 3: Cross multiply
    62,931.28x = 86,845.38 × 36,075.40
  4. Step 4: Simplify right side
    62,931.28x = 3,132,981,821.65
  5. Step 5: Solve for x
    x = 3,132,981,821.65/62,931.28
  6. Step 6: Final answer
    x = 49,784.17

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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.