Home / 53,185.40-73,390.02-30,518.36

Finding the Fourth Proportional to 53,185.40, 73,390.02 and 30,518.36

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Solution

The fourth proportional to 53,185.40, 73,390.02 and 30,518.36 is: 42,111.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,185.40 : 73,390.02 = 30,518.36 : x
  2. Step 2: Convert to fraction form
    53,185.40/73,390.02 = 30,518.36/x
  3. Step 3: Cross multiply
    53,185.40x = 73,390.02 × 30,518.36
  4. Step 4: Simplify right side
    53,185.40x = 2,239,743,050.77
  5. Step 5: Solve for x
    x = 2,239,743,050.77/53,185.40
  6. Step 6: Final answer
    x = 42,111.99

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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.