Home / 72,670.23-100,274.27-40,402.26

Finding the Fourth Proportional to 72,670.23, 100,274.27 and 40,402.26

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Solution

The fourth proportional to 72,670.23, 100,274.27 and 40,402.26 is: 55,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,670.23 : 100,274.27 = 40,402.26 : x
  2. Step 2: Convert to fraction form
    72,670.23/100,274.27 = 40,402.26/x
  3. Step 3: Cross multiply
    72,670.23x = 100,274.27 × 40,402.26
  4. Step 4: Simplify right side
    72,670.23x = 4,051,306,925.84
  5. Step 5: Solve for x
    x = 4,051,306,925.84/72,670.23
  6. Step 6: Final answer
    x = 55,749.20

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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.