Home / 66,910.76-92,341.32-38,615.84

Finding the Fourth Proportional to 66,910.76, 92,341.32 and 38,615.84

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Solution

The fourth proportional to 66,910.76, 92,341.32 and 38,615.84 is: 53,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,910.76 : 92,341.32 = 38,615.84 : x
  2. Step 2: Convert to fraction form
    66,910.76/92,341.32 = 38,615.84/x
  3. Step 3: Cross multiply
    66,910.76x = 92,341.32 × 38,615.84
  4. Step 4: Simplify right side
    66,910.76x = 3,565,837,638.51
  5. Step 5: Solve for x
    x = 3,565,837,638.51/66,910.76
  6. Step 6: Final answer
    x = 53,292.44

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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.