Home / 76,285.64-105,280.02-48,015.56

Finding the Fourth Proportional to 76,285.64, 105,280.02 and 48,015.56

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Solution

The fourth proportional to 76,285.64, 105,280.02 and 48,015.56 is: 66,265.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,285.64 : 105,280.02 = 48,015.56 : x
  2. Step 2: Convert to fraction form
    76,285.64/105,280.02 = 48,015.56/x
  3. Step 3: Cross multiply
    76,285.64x = 105,280.02 × 48,015.56
  4. Step 4: Simplify right side
    76,285.64x = 5,055,079,117.11
  5. Step 5: Solve for x
    x = 5,055,079,117.11/76,285.64
  6. Step 6: Final answer
    x = 66,265.15

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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.