Home / 72,743.04-100,389.54-48,502.20

Finding the Fourth Proportional to 72,743.04, 100,389.54 and 48,502.20

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Solution

The fourth proportional to 72,743.04, 100,389.54 and 48,502.20 is: 66,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,743.04 : 100,389.54 = 48,502.20 : x
  2. Step 2: Convert to fraction form
    72,743.04/100,389.54 = 48,502.20/x
  3. Step 3: Cross multiply
    72,743.04x = 100,389.54 × 48,502.20
  4. Step 4: Simplify right side
    72,743.04x = 4,869,113,546.99
  5. Step 5: Solve for x
    x = 4,869,113,546.99/72,743.04
  6. Step 6: Final answer
    x = 66,935.80

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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.