Home / 75,307.25-103,913.21-45,085.34

Finding the Fourth Proportional to 75,307.25, 103,913.21 and 45,085.34

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Solution

The fourth proportional to 75,307.25, 103,913.21 and 45,085.34 is: 62,211.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,307.25 : 103,913.21 = 45,085.34 : x
  2. Step 2: Convert to fraction form
    75,307.25/103,913.21 = 45,085.34/x
  3. Step 3: Cross multiply
    75,307.25x = 103,913.21 × 45,085.34
  4. Step 4: Simplify right side
    75,307.25x = 4,684,962,403.34
  5. Step 5: Solve for x
    x = 4,684,962,403.34/75,307.25
  6. Step 6: Final answer
    x = 62,211.31

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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.