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Finding the Fourth Proportional to 72,604.80, 100,598.22 and 71,030.16

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Solution

The fourth proportional to 72,604.80, 100,598.22 and 71,030.16 is: 98,416.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,604.80 : 100,598.22 = 71,030.16 : x
  2. Step 2: Convert to fraction form
    72,604.80/100,598.22 = 71,030.16/x
  3. Step 3: Cross multiply
    72,604.80x = 100,598.22 × 71,030.16
  4. Step 4: Simplify right side
    72,604.80x = 7,145,507,662.32
  5. Step 5: Solve for x
    x = 7,145,507,662.32/72,604.80
  6. Step 6: Final answer
    x = 98,416.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.