Home / 72,543.29-100,119.51-40,713.93

Finding the Fourth Proportional to 72,543.29, 100,119.51 and 40,713.93

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Solution

The fourth proportional to 72,543.29, 100,119.51 and 40,713.93 is: 56,190.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,543.29 : 100,119.51 = 40,713.93 : x
  2. Step 2: Convert to fraction form
    72,543.29/100,119.51 = 40,713.93/x
  3. Step 3: Cross multiply
    72,543.29x = 100,119.51 × 40,713.93
  4. Step 4: Simplify right side
    72,543.29x = 4,076,258,721.77
  5. Step 5: Solve for x
    x = 4,076,258,721.77/72,543.29
  6. Step 6: Final answer
    x = 56,190.71

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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.