Home / 76,999.36-106,258.80-43,465.12

Finding the Fourth Proportional to 76,999.36, 106,258.80 and 43,465.12

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Solution

The fourth proportional to 76,999.36, 106,258.80 and 43,465.12 is: 59,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,999.36 : 106,258.80 = 43,465.12 : x
  2. Step 2: Convert to fraction form
    76,999.36/106,258.80 = 43,465.12/x
  3. Step 3: Cross multiply
    76,999.36x = 106,258.80 × 43,465.12
  4. Step 4: Simplify right side
    76,999.36x = 4,618,551,493.06
  5. Step 5: Solve for x
    x = 4,618,551,493.06/76,999.36
  6. Step 6: Final answer
    x = 59,981.69

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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.