Home / 72,626.49-100,225.85-40,364.06

Finding the Fourth Proportional to 72,626.49, 100,225.85 and 40,364.06

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Solution

The fourth proportional to 72,626.49, 100,225.85 and 40,364.06 is: 55,703.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,626.49 : 100,225.85 = 40,364.06 : x
  2. Step 2: Convert to fraction form
    72,626.49/100,225.85 = 40,364.06/x
  3. Step 3: Cross multiply
    72,626.49x = 100,225.85 × 40,364.06
  4. Step 4: Simplify right side
    72,626.49x = 4,045,521,520.00
  5. Step 5: Solve for x
    x = 4,045,521,520.00/72,626.49
  6. Step 6: Final answer
    x = 55,703.11

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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.