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Finding the Fourth Proportional to 70,809.80, 97,714.60 and 40,574.06

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Solution

The fourth proportional to 70,809.80, 97,714.60 and 40,574.06 is: 55,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,809.80 : 97,714.60 = 40,574.06 : x
  2. Step 2: Convert to fraction form
    70,809.80/97,714.60 = 40,574.06/x
  3. Step 3: Cross multiply
    70,809.80x = 97,714.60 × 40,574.06
  4. Step 4: Simplify right side
    70,809.80x = 3,964,678,597.57
  5. Step 5: Solve for x
    x = 3,964,678,597.57/70,809.80
  6. Step 6: Final answer
    x = 55,990.54

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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.