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Finding the Fourth Proportional to 70,485.98, 97,268.55 and 40,271.18

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Solution

The fourth proportional to 70,485.98, 97,268.55 and 40,271.18 is: 55,573.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,485.98 : 97,268.55 = 40,271.18 : x
  2. Step 2: Convert to fraction form
    70,485.98/97,268.55 = 40,271.18/x
  3. Step 3: Cross multiply
    70,485.98x = 97,268.55 × 40,271.18
  4. Step 4: Simplify right side
    70,485.98x = 3,917,119,285.39
  5. Step 5: Solve for x
    x = 3,917,119,285.39/70,485.98
  6. Step 6: Final answer
    x = 55,573.03

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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.