Home / 72,627.13-100,225.51-40,364.77

Finding the Fourth Proportional to 72,627.13, 100,225.51 and 40,364.77

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Solution

The fourth proportional to 72,627.13, 100,225.51 and 40,364.77 is: 55,703.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,627.13 : 100,225.51 = 40,364.77 : x
  2. Step 2: Convert to fraction form
    72,627.13/100,225.51 = 40,364.77/x
  3. Step 3: Cross multiply
    72,627.13x = 100,225.51 × 40,364.77
  4. Step 4: Simplify right side
    72,627.13x = 4,045,579,629.81
  5. Step 5: Solve for x
    x = 4,045,579,629.81/72,627.13
  6. Step 6: Final answer
    x = 55,703.42

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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.