Home / 76,668.32-105,808.88-42,675.66

Finding the Fourth Proportional to 76,668.32, 105,808.88 and 42,675.66

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Solution

The fourth proportional to 76,668.32, 105,808.88 and 42,675.66 is: 58,896.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,668.32 : 105,808.88 = 42,675.66 : x
  2. Step 2: Convert to fraction form
    76,668.32/105,808.88 = 42,675.66/x
  3. Step 3: Cross multiply
    76,668.32x = 105,808.88 × 42,675.66
  4. Step 4: Simplify right side
    76,668.32x = 4,515,463,894.55
  5. Step 5: Solve for x
    x = 4,515,463,894.55/76,668.32
  6. Step 6: Final answer
    x = 58,896.08

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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.