Home / 77,135.83-106,457.30-43,146.20

Finding the Fourth Proportional to 77,135.83, 106,457.30 and 43,146.20

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Solution

The fourth proportional to 77,135.83, 106,457.30 and 43,146.20 is: 59,547.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,135.83 : 106,457.30 = 43,146.20 : x
  2. Step 2: Convert to fraction form
    77,135.83/106,457.30 = 43,146.20/x
  3. Step 3: Cross multiply
    77,135.83x = 106,457.30 × 43,146.20
  4. Step 4: Simplify right side
    77,135.83x = 4,593,228,230.14
  5. Step 5: Solve for x
    x = 4,593,228,230.14/77,135.83
  6. Step 6: Final answer
    x = 59,547.27

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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.