Home / 65,929.89-90,983.68-35,715.21

Finding the Fourth Proportional to 65,929.89, 90,983.68 and 35,715.21

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Solution

The fourth proportional to 65,929.89, 90,983.68 and 35,715.21 is: 49,287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,929.89 : 90,983.68 = 35,715.21 : x
  2. Step 2: Convert to fraction form
    65,929.89/90,983.68 = 35,715.21/x
  3. Step 3: Cross multiply
    65,929.89x = 90,983.68 × 35,715.21
  4. Step 4: Simplify right side
    65,929.89x = 3,249,501,237.77
  5. Step 5: Solve for x
    x = 3,249,501,237.77/65,929.89
  6. Step 6: Final answer
    x = 49,287.22

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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.