Home / 53,618.98-74,004.70-30,972.60

Finding the Fourth Proportional to 53,618.98, 74,004.70 and 30,972.60

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Solution

The fourth proportional to 53,618.98, 74,004.70 and 30,972.60 is: 42,748.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,618.98 : 74,004.70 = 30,972.60 : x
  2. Step 2: Convert to fraction form
    53,618.98/74,004.70 = 30,972.60/x
  3. Step 3: Cross multiply
    53,618.98x = 74,004.70 × 30,972.60
  4. Step 4: Simplify right side
    53,618.98x = 2,292,117,971.22
  5. Step 5: Solve for x
    x = 2,292,117,971.22/53,618.98
  6. Step 6: Final answer
    x = 42,748.26

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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.