Home / 76,558.64-105,653.21-42,101.57

Finding the Fourth Proportional to 76,558.64, 105,653.21 and 42,101.57

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Solution

The fourth proportional to 76,558.64, 105,653.21 and 42,101.57 is: 58,101.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,558.64 : 105,653.21 = 42,101.57 : x
  2. Step 2: Convert to fraction form
    76,558.64/105,653.21 = 42,101.57/x
  3. Step 3: Cross multiply
    76,558.64x = 105,653.21 × 42,101.57
  4. Step 4: Simplify right side
    76,558.64x = 4,448,166,070.16
  5. Step 5: Solve for x
    x = 4,448,166,070.16/76,558.64
  6. Step 6: Final answer
    x = 58,101.43

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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.