Home / 72,558.03-100,130.13-40,732.32

Finding the Fourth Proportional to 72,558.03, 100,130.13 and 40,732.32

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Solution

The fourth proportional to 72,558.03, 100,130.13 and 40,732.32 is: 56,210.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,558.03 : 100,130.13 = 40,732.32 : x
  2. Step 2: Convert to fraction form
    72,558.03/100,130.13 = 40,732.32/x
  3. Step 3: Cross multiply
    72,558.03x = 100,130.13 × 40,732.32
  4. Step 4: Simplify right side
    72,558.03x = 4,078,532,496.80
  5. Step 5: Solve for x
    x = 4,078,532,496.80/72,558.03
  6. Step 6: Final answer
    x = 56,210.63

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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.