Home / 53,314.32-79,973.48-13,870.40

Finding the Fourth Proportional to 53,314.32, 79,973.48 and 13,870.40

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Solution

The fourth proportional to 53,314.32, 79,973.48 and 13,870.40 is: 20,806.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,314.32 : 79,973.48 = 13,870.40 : x
  2. Step 2: Convert to fraction form
    53,314.32/79,973.48 = 13,870.40/x
  3. Step 3: Cross multiply
    53,314.32x = 79,973.48 × 13,870.40
  4. Step 4: Simplify right side
    53,314.32x = 1,109,264,156.99
  5. Step 5: Solve for x
    x = 1,109,264,156.99/53,314.32
  6. Step 6: Final answer
    x = 20,806.12

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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.