Home / 40,905.49-56,477.54-31,328.45

Finding the Fourth Proportional to 40,905.49, 56,477.54 and 31,328.45

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Solution

The fourth proportional to 40,905.49, 56,477.54 and 31,328.45 is: 43,254.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,905.49 : 56,477.54 = 31,328.45 : x
  2. Step 2: Convert to fraction form
    40,905.49/56,477.54 = 31,328.45/x
  3. Step 3: Cross multiply
    40,905.49x = 56,477.54 × 31,328.45
  4. Step 4: Simplify right side
    40,905.49x = 1,769,353,772.56
  5. Step 5: Solve for x
    x = 1,769,353,772.56/40,905.49
  6. Step 6: Final answer
    x = 43,254.68

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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.