Home / 53,650.80-74,041.63-30,990.74

Finding the Fourth Proportional to 53,650.80, 74,041.63 and 30,990.74

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Solution

The fourth proportional to 53,650.80, 74,041.63 and 30,990.74 is: 42,769.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,650.80 : 74,041.63 = 30,990.74 : x
  2. Step 2: Convert to fraction form
    53,650.80/74,041.63 = 30,990.74/x
  3. Step 3: Cross multiply
    53,650.80x = 74,041.63 × 30,990.74
  4. Step 4: Simplify right side
    53,650.80x = 2,294,604,904.51
  5. Step 5: Solve for x
    x = 2,294,604,904.51/53,650.80
  6. Step 6: Final answer
    x = 42,769.26

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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.