Home / 53,381.21-80,070.24-13,938.32

Finding the Fourth Proportional to 53,381.21, 80,070.24 and 13,938.32

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Solution

The fourth proportional to 53,381.21, 80,070.24 and 13,938.32 is: 20,907.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,381.21 : 80,070.24 = 13,938.32 : x
  2. Step 2: Convert to fraction form
    53,381.21/80,070.24 = 13,938.32/x
  3. Step 3: Cross multiply
    53,381.21x = 80,070.24 × 13,938.32
  4. Step 4: Simplify right side
    53,381.21x = 1,116,044,827.77
  5. Step 5: Solve for x
    x = 1,116,044,827.77/53,381.21
  6. Step 6: Final answer
    x = 20,907.07

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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.