Home / 77,321.25-106,701.53-45,492.21

Finding the Fourth Proportional to 77,321.25, 106,701.53 and 45,492.21

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Solution

The fourth proportional to 77,321.25, 106,701.53 and 45,492.21 is: 62,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,321.25 : 106,701.53 = 45,492.21 : x
  2. Step 2: Convert to fraction form
    77,321.25/106,701.53 = 45,492.21/x
  3. Step 3: Cross multiply
    77,321.25x = 106,701.53 × 45,492.21
  4. Step 4: Simplify right side
    77,321.25x = 4,854,088,182.62
  5. Step 5: Solve for x
    x = 4,854,088,182.62/77,321.25
  6. Step 6: Final answer
    x = 62,778.19

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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.