Home / 47,715.31-65,909.10-36,315.55

Finding the Fourth Proportional to 47,715.31, 65,909.10 and 36,315.55

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Solution

The fourth proportional to 47,715.31, 65,909.10 and 36,315.55 is: 50,162.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,715.31 : 65,909.10 = 36,315.55 : x
  2. Step 2: Convert to fraction form
    47,715.31/65,909.10 = 36,315.55/x
  3. Step 3: Cross multiply
    47,715.31x = 65,909.10 × 36,315.55
  4. Step 4: Simplify right side
    47,715.31x = 2,393,525,216.51
  5. Step 5: Solve for x
    x = 2,393,525,216.51/47,715.31
  6. Step 6: Final answer
    x = 50,162.63

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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.