Home / 72,941.51-100,657.28-40,677.09

Finding the Fourth Proportional to 72,941.51, 100,657.28 and 40,677.09

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Solution

The fourth proportional to 72,941.51, 100,657.28 and 40,677.09 is: 56,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,941.51 : 100,657.28 = 40,677.09 : x
  2. Step 2: Convert to fraction form
    72,941.51/100,657.28 = 40,677.09/x
  3. Step 3: Cross multiply
    72,941.51x = 100,657.28 × 40,677.09
  4. Step 4: Simplify right side
    72,941.51x = 4,094,444,961.94
  5. Step 5: Solve for x
    x = 4,094,444,961.94/72,941.51
  6. Step 6: Final answer
    x = 56,133.26

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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.