Home / 76,621.71-105,741.96-42,630.33

Finding the Fourth Proportional to 76,621.71, 105,741.96 and 42,630.33

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Solution

The fourth proportional to 76,621.71, 105,741.96 and 42,630.33 is: 58,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,621.71 : 105,741.96 = 42,630.33 : x
  2. Step 2: Convert to fraction form
    76,621.71/105,741.96 = 42,630.33/x
  3. Step 3: Cross multiply
    76,621.71x = 105,741.96 × 42,630.33
  4. Step 4: Simplify right side
    76,621.71x = 4,507,814,649.65
  5. Step 5: Solve for x
    x = 4,507,814,649.65/76,621.71
  6. Step 6: Final answer
    x = 58,832.08

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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.