Home / 76,580.32-105,685.68-43,048.48

Finding the Fourth Proportional to 76,580.32, 105,685.68 and 43,048.48

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Solution

The fourth proportional to 76,580.32, 105,685.68 and 43,048.48 is: 59,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,580.32 : 105,685.68 = 43,048.48 : x
  2. Step 2: Convert to fraction form
    76,580.32/105,685.68 = 43,048.48/x
  3. Step 3: Cross multiply
    76,580.32x = 105,685.68 × 43,048.48
  4. Step 4: Simplify right side
    76,580.32x = 4,549,607,881.77
  5. Step 5: Solve for x
    x = 4,549,607,881.77/76,580.32
  6. Step 6: Final answer
    x = 59,409.62

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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.