Home / 53,681.03-74,090.70-31,020.98

Finding the Fourth Proportional to 53,681.03, 74,090.70 and 31,020.98

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Solution

The fourth proportional to 53,681.03, 74,090.70 and 31,020.98 is: 42,815.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,681.03 : 74,090.70 = 31,020.98 : x
  2. Step 2: Convert to fraction form
    53,681.03/74,090.70 = 31,020.98/x
  3. Step 3: Cross multiply
    53,681.03x = 74,090.70 × 31,020.98
  4. Step 4: Simplify right side
    53,681.03x = 2,298,365,752.43
  5. Step 5: Solve for x
    x = 2,298,365,752.43/53,681.03
  6. Step 6: Final answer
    x = 42,815.23

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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.