Home / 74,909.14-103,416.12-51,070.84

Finding the Fourth Proportional to 74,909.14, 103,416.12 and 51,070.84

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Solution

The fourth proportional to 74,909.14, 103,416.12 and 51,070.84 is: 70,506.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,909.14 : 103,416.12 = 51,070.84 : x
  2. Step 2: Convert to fraction form
    74,909.14/103,416.12 = 51,070.84/x
  3. Step 3: Cross multiply
    74,909.14x = 103,416.12 × 51,070.84
  4. Step 4: Simplify right side
    74,909.14x = 5,281,548,117.94
  5. Step 5: Solve for x
    x = 5,281,548,117.94/74,909.14
  6. Step 6: Final answer
    x = 70,506.06

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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.