Home / 77,290.12-106,657.32-43,756.12

Finding the Fourth Proportional to 77,290.12, 106,657.32 and 43,756.12

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Solution

The fourth proportional to 77,290.12, 106,657.32 and 43,756.12 is: 60,381.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,290.12 : 106,657.32 = 43,756.12 : x
  2. Step 2: Convert to fraction form
    77,290.12/106,657.32 = 43,756.12/x
  3. Step 3: Cross multiply
    77,290.12x = 106,657.32 × 43,756.12
  4. Step 4: Simplify right side
    77,290.12x = 4,666,910,492.80
  5. Step 5: Solve for x
    x = 4,666,910,492.80/77,290.12
  6. Step 6: Final answer
    x = 60,381.72

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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.