Home / 76,210.29-105,169.09-42,218.72

Finding the Fourth Proportional to 76,210.29, 105,169.09 and 42,218.72

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Solution

The fourth proportional to 76,210.29, 105,169.09 and 42,218.72 is: 58,261.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,210.29 : 105,169.09 = 42,218.72 : x
  2. Step 2: Convert to fraction form
    76,210.29/105,169.09 = 42,218.72/x
  3. Step 3: Cross multiply
    76,210.29x = 105,169.09 × 42,218.72
  4. Step 4: Simplify right side
    76,210.29x = 4,440,104,363.36
  5. Step 5: Solve for x
    x = 4,440,104,363.36/76,210.29
  6. Step 6: Final answer
    x = 58,261.22

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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.