Home / 76,210.87-105,177.45-42,230.01

Finding the Fourth Proportional to 76,210.87, 105,177.45 and 42,230.01

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Solution

The fourth proportional to 76,210.87, 105,177.45 and 42,230.01 is: 58,280.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,210.87 : 105,177.45 = 42,230.01 : x
  2. Step 2: Convert to fraction form
    76,210.87/105,177.45 = 42,230.01/x
  3. Step 3: Cross multiply
    76,210.87x = 105,177.45 × 42,230.01
  4. Step 4: Simplify right side
    76,210.87x = 4,441,644,765.27
  5. Step 5: Solve for x
    x = 4,441,644,765.27/76,210.87
  6. Step 6: Final answer
    x = 58,280.99

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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.