Home / 72,767.16-100,417.59-40,936.05

Finding the Fourth Proportional to 72,767.16, 100,417.59 and 40,936.05

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Solution

The fourth proportional to 72,767.16, 100,417.59 and 40,936.05 is: 56,491.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,767.16 : 100,417.59 = 40,936.05 : x
  2. Step 2: Convert to fraction form
    72,767.16/100,417.59 = 40,936.05/x
  3. Step 3: Cross multiply
    72,767.16x = 100,417.59 × 40,936.05
  4. Step 4: Simplify right side
    72,767.16x = 4,110,699,485.12
  5. Step 5: Solve for x
    x = 4,110,699,485.12/72,767.16
  6. Step 6: Final answer
    x = 56,491.14

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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.