Home / 76,509.11-105,582.17-42,054.63

Finding the Fourth Proportional to 76,509.11, 105,582.17 and 42,054.63

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Solution

The fourth proportional to 76,509.11, 105,582.17 and 42,054.63 is: 58,035.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,509.11 : 105,582.17 = 42,054.63 : x
  2. Step 2: Convert to fraction form
    76,509.11/105,582.17 = 42,054.63/x
  3. Step 3: Cross multiply
    76,509.11x = 105,582.17 × 42,054.63
  4. Step 4: Simplify right side
    76,509.11x = 4,440,218,883.67
  5. Step 5: Solve for x
    x = 4,440,218,883.67/76,509.11
  6. Step 6: Final answer
    x = 58,035.17

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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.