Home / 72,071.64-99,440.46-43,777.80

Finding the Fourth Proportional to 72,071.64, 99,440.46 and 43,777.80

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Solution

The fourth proportional to 72,071.64, 99,440.46 and 43,777.80 is: 60,402.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,071.64 : 99,440.46 = 43,777.80 : x
  2. Step 2: Convert to fraction form
    72,071.64/99,440.46 = 43,777.80/x
  3. Step 3: Cross multiply
    72,071.64x = 99,440.46 × 43,777.80
  4. Step 4: Simplify right side
    72,071.64x = 4,353,284,569.79
  5. Step 5: Solve for x
    x = 4,353,284,569.79/72,071.64
  6. Step 6: Final answer
    x = 60,402.19

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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.