Home / 77,315.60-106,650.60-43,775.12

Finding the Fourth Proportional to 77,315.60, 106,650.60 and 43,775.12

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Solution

The fourth proportional to 77,315.60, 106,650.60 and 43,775.12 is: 60,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,315.60 : 106,650.60 = 43,775.12 : x
  2. Step 2: Convert to fraction form
    77,315.60/106,650.60 = 43,775.12/x
  3. Step 3: Cross multiply
    77,315.60x = 106,650.60 × 43,775.12
  4. Step 4: Simplify right side
    77,315.60x = 4,668,642,813.07
  5. Step 5: Solve for x
    x = 4,668,642,813.07/77,315.60
  6. Step 6: Final answer
    x = 60,384.23

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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.