Home / 72,188.16-108,300.69-30,054.23

Finding the Fourth Proportional to 72,188.16, 108,300.69 and 30,054.23

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Solution

The fourth proportional to 72,188.16, 108,300.69 and 30,054.23 is: 45,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,188.16 : 108,300.69 = 30,054.23 : x
  2. Step 2: Convert to fraction form
    72,188.16/108,300.69 = 30,054.23/x
  3. Step 3: Cross multiply
    72,188.16x = 108,300.69 × 30,054.23
  4. Step 4: Simplify right side
    72,188.16x = 3,254,894,222.95
  5. Step 5: Solve for x
    x = 3,254,894,222.95/72,188.16
  6. Step 6: Final answer
    x = 45,089.03

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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.