Home / 76,285.16-105,276.85-42,291.48

Finding the Fourth Proportional to 76,285.16, 105,276.85 and 42,291.48

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Solution

The fourth proportional to 76,285.16, 105,276.85 and 42,291.48 is: 58,364.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,285.16 : 105,276.85 = 42,291.48 : x
  2. Step 2: Convert to fraction form
    76,285.16/105,276.85 = 42,291.48/x
  3. Step 3: Cross multiply
    76,285.16x = 105,276.85 × 42,291.48
  4. Step 4: Simplify right side
    76,285.16x = 4,452,313,796.24
  5. Step 5: Solve for x
    x = 4,452,313,796.24/76,285.16
  6. Step 6: Final answer
    x = 58,364.09

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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.