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Finding the Fourth Proportional to 72,530.01, 100,088.80 and 40,266.02

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Solution

The fourth proportional to 72,530.01, 100,088.80 and 40,266.02 is: 55,565.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,530.01 : 100,088.80 = 40,266.02 : x
  2. Step 2: Convert to fraction form
    72,530.01/100,088.80 = 40,266.02/x
  3. Step 3: Cross multiply
    72,530.01x = 100,088.80 × 40,266.02
  4. Step 4: Simplify right side
    72,530.01x = 4,030,177,772.13
  5. Step 5: Solve for x
    x = 4,030,177,772.13/72,530.01
  6. Step 6: Final answer
    x = 55,565.66

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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.