Home / 70,378.05-97,112.84-56,074.17

Finding the Fourth Proportional to 70,378.05, 97,112.84 and 56,074.17

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Solution

The fourth proportional to 70,378.05, 97,112.84 and 56,074.17 is: 77,375.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,378.05 : 97,112.84 = 56,074.17 : x
  2. Step 2: Convert to fraction form
    70,378.05/97,112.84 = 56,074.17/x
  3. Step 3: Cross multiply
    70,378.05x = 97,112.84 × 56,074.17
  4. Step 4: Simplify right side
    70,378.05x = 5,445,521,618.97
  5. Step 5: Solve for x
    x = 5,445,521,618.97/70,378.05
  6. Step 6: Final answer
    x = 77,375.28

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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.