Home / 76,326.28-105,335.66-42,338.01

Finding the Fourth Proportional to 76,326.28, 105,335.66 and 42,338.01

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Solution

The fourth proportional to 76,326.28, 105,335.66 and 42,338.01 is: 58,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,326.28 : 105,335.66 = 42,338.01 : x
  2. Step 2: Convert to fraction form
    76,326.28/105,335.66 = 42,338.01/x
  3. Step 3: Cross multiply
    76,326.28x = 105,335.66 × 42,338.01
  4. Step 4: Simplify right side
    76,326.28x = 4,459,702,226.44
  5. Step 5: Solve for x
    x = 4,459,702,226.44/76,326.28
  6. Step 6: Final answer
    x = 58,429.45

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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.