Home / 77,409.45-116,012.66-56,133.45

Finding the Fourth Proportional to 77,409.45, 116,012.66 and 56,133.45

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Solution

The fourth proportional to 77,409.45, 116,012.66 and 56,133.45 is: 84,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,409.45 : 116,012.66 = 56,133.45 : x
  2. Step 2: Convert to fraction form
    77,409.45/116,012.66 = 56,133.45/x
  3. Step 3: Cross multiply
    77,409.45x = 116,012.66 × 56,133.45
  4. Step 4: Simplify right side
    77,409.45x = 6,512,190,568.81
  5. Step 5: Solve for x
    x = 6,512,190,568.81/77,409.45
  6. Step 6: Final answer
    x = 84,126.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.