Home / 76,500.93-105,571.08-42,509.28

Finding the Fourth Proportional to 76,500.93, 105,571.08 and 42,509.28

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Solution

The fourth proportional to 76,500.93, 105,571.08 and 42,509.28 is: 58,662.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,500.93 : 105,571.08 = 42,509.28 : x
  2. Step 2: Convert to fraction form
    76,500.93/105,571.08 = 42,509.28/x
  3. Step 3: Cross multiply
    76,500.93x = 105,571.08 × 42,509.28
  4. Step 4: Simplify right side
    76,500.93x = 4,487,750,599.62
  5. Step 5: Solve for x
    x = 4,487,750,599.62/76,500.93
  6. Step 6: Final answer
    x = 58,662.69

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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.