Home / 53,421.60-80,130.17-13,977.84

Finding the Fourth Proportional to 53,421.60, 80,130.17 and 13,977.84

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Solution

The fourth proportional to 53,421.60, 80,130.17 and 13,977.84 is: 20,966.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,421.60 : 80,130.17 = 13,977.84 : x
  2. Step 2: Convert to fraction form
    53,421.60/80,130.17 = 13,977.84/x
  3. Step 3: Cross multiply
    53,421.60x = 80,130.17 × 13,977.84
  4. Step 4: Simplify right side
    53,421.60x = 1,120,046,325.06
  5. Step 5: Solve for x
    x = 1,120,046,325.06/53,421.60
  6. Step 6: Final answer
    x = 20,966.17

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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.