Home / 76,265.04-105,028.16-68,646.48

Finding the Fourth Proportional to 76,265.04, 105,028.16 and 68,646.48

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Solution

The fourth proportional to 76,265.04, 105,028.16 and 68,646.48 is: 94,536.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,265.04 : 105,028.16 = 68,646.48 : x
  2. Step 2: Convert to fraction form
    76,265.04/105,028.16 = 68,646.48/x
  3. Step 3: Cross multiply
    76,265.04x = 105,028.16 × 68,646.48
  4. Step 4: Simplify right side
    76,265.04x = 7,209,813,484.88
  5. Step 5: Solve for x
    x = 7,209,813,484.88/76,265.04
  6. Step 6: Final answer
    x = 94,536.28

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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.