Home / 53,127.38-73,309.40-30,465.20

Finding the Fourth Proportional to 53,127.38, 73,309.40 and 30,465.20

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Solution

The fourth proportional to 53,127.38, 73,309.40 and 30,465.20 is: 42,038.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,127.38 : 73,309.40 = 30,465.20 : x
  2. Step 2: Convert to fraction form
    53,127.38/73,309.40 = 30,465.20/x
  3. Step 3: Cross multiply
    53,127.38x = 73,309.40 × 30,465.20
  4. Step 4: Simplify right side
    53,127.38x = 2,233,385,014.01
  5. Step 5: Solve for x
    x = 2,233,385,014.01/53,127.38
  6. Step 6: Final answer
    x = 42,038.31

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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.