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Finding the Fourth Proportional to 75,009.60, 112,514.40 and 70,052.40

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Solution

The fourth proportional to 75,009.60, 112,514.40 and 70,052.40 is: 105,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,009.60 : 112,514.40 = 70,052.40 : x
  2. Step 2: Convert to fraction form
    75,009.60/112,514.40 = 70,052.40/x
  3. Step 3: Cross multiply
    75,009.60x = 112,514.40 × 70,052.40
  4. Step 4: Simplify right side
    75,009.60x = 7,881,903,754.56
  5. Step 5: Solve for x
    x = 7,881,903,754.56/75,009.60
  6. Step 6: Final answer
    x = 105,078.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.