Home / 76,970.32-106,236.75-45,149.47

Finding the Fourth Proportional to 76,970.32, 106,236.75 and 45,149.47

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Solution

The fourth proportional to 76,970.32, 106,236.75 and 45,149.47 is: 62,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,970.32 : 106,236.75 = 45,149.47 : x
  2. Step 2: Convert to fraction form
    76,970.32/106,236.75 = 45,149.47/x
  3. Step 3: Cross multiply
    76,970.32x = 106,236.75 × 45,149.47
  4. Step 4: Simplify right side
    76,970.32x = 4,796,532,957.02
  5. Step 5: Solve for x
    x = 4,796,532,957.02/76,970.32
  6. Step 6: Final answer
    x = 62,316.66

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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.