Home / 76,460.36-105,515.40-42,926.36

Finding the Fourth Proportional to 76,460.36, 105,515.40 and 42,926.36

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Solution

The fourth proportional to 76,460.36, 105,515.40 and 42,926.36 is: 59,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,460.36 : 105,515.40 = 42,926.36 : x
  2. Step 2: Convert to fraction form
    76,460.36/105,515.40 = 42,926.36/x
  3. Step 3: Cross multiply
    76,460.36x = 105,515.40 × 42,926.36
  4. Step 4: Simplify right side
    76,460.36x = 4,529,392,045.94
  5. Step 5: Solve for x
    x = 4,529,392,045.94/76,460.36
  6. Step 6: Final answer
    x = 59,238.43

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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.