Home / 53,270.42-79,905.63-18,210.38

Finding the Fourth Proportional to 53,270.42, 79,905.63 and 18,210.38

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Solution

The fourth proportional to 53,270.42, 79,905.63 and 18,210.38 is: 27,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,270.42 : 79,905.63 = 18,210.38 : x
  2. Step 2: Convert to fraction form
    53,270.42/79,905.63 = 18,210.38/x
  3. Step 3: Cross multiply
    53,270.42x = 79,905.63 × 18,210.38
  4. Step 4: Simplify right side
    53,270.42x = 1,455,111,886.44
  5. Step 5: Solve for x
    x = 1,455,111,886.44/53,270.42
  6. Step 6: Final answer
    x = 27,315.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.