Home / 76,330.07-105,387.45-47,660.93

Finding the Fourth Proportional to 76,330.07, 105,387.45 and 47,660.93

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Solution

The fourth proportional to 76,330.07, 105,387.45 and 47,660.93 is: 65,804.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,330.07 : 105,387.45 = 47,660.93 : x
  2. Step 2: Convert to fraction form
    76,330.07/105,387.45 = 47,660.93/x
  3. Step 3: Cross multiply
    76,330.07x = 105,387.45 × 47,660.93
  4. Step 4: Simplify right side
    76,330.07x = 5,022,863,877.33
  5. Step 5: Solve for x
    x = 5,022,863,877.33/76,330.07
  6. Step 6: Final answer
    x = 65,804.52

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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.