Home / 74,457.20-102,727.76-42,620.16

Finding the Fourth Proportional to 74,457.20, 102,727.76 and 42,620.16

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Solution

The fourth proportional to 74,457.20, 102,727.76 and 42,620.16 is: 58,802.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,457.20 : 102,727.76 = 42,620.16 : x
  2. Step 2: Convert to fraction form
    74,457.20/102,727.76 = 42,620.16/x
  3. Step 3: Cross multiply
    74,457.20x = 102,727.76 × 42,620.16
  4. Step 4: Simplify right side
    74,457.20x = 4,378,273,567.64
  5. Step 5: Solve for x
    x = 4,378,273,567.64/74,457.20
  6. Step 6: Final answer
    x = 58,802.55

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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.