Home / 76,241.12-105,216.80-42,253.32

Finding the Fourth Proportional to 76,241.12, 105,216.80 and 42,253.32

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Solution

The fourth proportional to 76,241.12, 105,216.80 and 42,253.32 is: 58,311.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,241.12 : 105,216.80 = 42,253.32 : x
  2. Step 2: Convert to fraction form
    76,241.12/105,216.80 = 42,253.32/x
  3. Step 3: Cross multiply
    76,241.12x = 105,216.80 × 42,253.32
  4. Step 4: Simplify right side
    76,241.12x = 4,445,758,908.51
  5. Step 5: Solve for x
    x = 4,445,758,908.51/76,241.12
  6. Step 6: Final answer
    x = 58,311.82

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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.