Home / 53,138.23-79,666.03-34,378.63

Finding the Fourth Proportional to 53,138.23, 79,666.03 and 34,378.63

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Solution

The fourth proportional to 53,138.23, 79,666.03 and 34,378.63 is: 51,541.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,138.23 : 79,666.03 = 34,378.63 : x
  2. Step 2: Convert to fraction form
    53,138.23/79,666.03 = 34,378.63/x
  3. Step 3: Cross multiply
    53,138.23x = 79,666.03 × 34,378.63
  4. Step 4: Simplify right side
    53,138.23x = 2,738,808,968.94
  5. Step 5: Solve for x
    x = 2,738,808,968.94/53,138.23
  6. Step 6: Final answer
    x = 51,541.22

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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.