Home / 53,628.09-74,017.53-30,970.77

Finding the Fourth Proportional to 53,628.09, 74,017.53 and 30,970.77

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Solution

The fourth proportional to 53,628.09, 74,017.53 and 30,970.77 is: 42,745.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,628.09 : 74,017.53 = 30,970.77 : x
  2. Step 2: Convert to fraction form
    53,628.09/74,017.53 = 30,970.77/x
  3. Step 3: Cross multiply
    53,628.09x = 74,017.53 × 30,970.77
  4. Step 4: Simplify right side
    53,628.09x = 2,292,379,620.03
  5. Step 5: Solve for x
    x = 2,292,379,620.03/53,628.09
  6. Step 6: Final answer
    x = 42,745.88

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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.