Home / 65,932.53-90,981.03-39,070.50

Finding the Fourth Proportional to 65,932.53, 90,981.03 and 39,070.50

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Solution

The fourth proportional to 65,932.53, 90,981.03 and 39,070.50 is: 53,913.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,932.53 : 90,981.03 = 39,070.50 : x
  2. Step 2: Convert to fraction form
    65,932.53/90,981.03 = 39,070.50/x
  3. Step 3: Cross multiply
    65,932.53x = 90,981.03 × 39,070.50
  4. Step 4: Simplify right side
    65,932.53x = 3,554,674,332.62
  5. Step 5: Solve for x
    x = 3,554,674,332.62/65,932.53
  6. Step 6: Final answer
    x = 53,913.82

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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.