Home / 40,009.60-55,228.80-35,810.56

Finding the Fourth Proportional to 40,009.60, 55,228.80 and 35,810.56

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Solution

The fourth proportional to 40,009.60, 55,228.80 and 35,810.56 is: 49,432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,009.60 : 55,228.80 = 35,810.56 : x
  2. Step 2: Convert to fraction form
    40,009.60/55,228.80 = 35,810.56/x
  3. Step 3: Cross multiply
    40,009.60x = 55,228.80 × 35,810.56
  4. Step 4: Simplify right side
    40,009.60x = 1,977,774,256.13
  5. Step 5: Solve for x
    x = 1,977,774,256.13/40,009.60
  6. Step 6: Final answer
    x = 49,432.49

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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.