Home / 76,557.32-105,678.65-51,054.47

Finding the Fourth Proportional to 76,557.32, 105,678.65 and 51,054.47

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Solution

The fourth proportional to 76,557.32, 105,678.65 and 51,054.47 is: 70,474.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,557.32 : 105,678.65 = 51,054.47 : x
  2. Step 2: Convert to fraction form
    76,557.32/105,678.65 = 51,054.47/x
  3. Step 3: Cross multiply
    76,557.32x = 105,678.65 × 51,054.47
  4. Step 4: Simplify right side
    76,557.32x = 5,395,367,466.07
  5. Step 5: Solve for x
    x = 5,395,367,466.07/76,557.32
  6. Step 6: Final answer
    x = 70,474.87

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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.