Home / 74,875.49-103,328.40-40,884.28

Finding the Fourth Proportional to 74,875.49, 103,328.40 and 40,884.28

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Solution

The fourth proportional to 74,875.49, 103,328.40 and 40,884.28 is: 56,420.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,875.49 : 103,328.40 = 40,884.28 : x
  2. Step 2: Convert to fraction form
    74,875.49/103,328.40 = 40,884.28/x
  3. Step 3: Cross multiply
    74,875.49x = 103,328.40 × 40,884.28
  4. Step 4: Simplify right side
    74,875.49x = 4,224,507,237.55
  5. Step 5: Solve for x
    x = 4,224,507,237.55/74,875.49
  6. Step 6: Final answer
    x = 56,420.43

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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.