Home / 76,401.07-105,434.40-42,410.23

Finding the Fourth Proportional to 76,401.07, 105,434.40 and 42,410.23

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Solution

The fourth proportional to 76,401.07, 105,434.40 and 42,410.23 is: 58,526.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,401.07 : 105,434.40 = 42,410.23 : x
  2. Step 2: Convert to fraction form
    76,401.07/105,434.40 = 42,410.23/x
  3. Step 3: Cross multiply
    76,401.07x = 105,434.40 × 42,410.23
  4. Step 4: Simplify right side
    76,401.07x = 4,471,497,153.91
  5. Step 5: Solve for x
    x = 4,471,497,153.91/76,401.07
  6. Step 6: Final answer
    x = 58,526.63

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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.