Home / 53,685.48-74,155.68-40,860.75

Finding the Fourth Proportional to 53,685.48, 74,155.68 and 40,860.75

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Solution

The fourth proportional to 53,685.48, 74,155.68 and 40,860.75 is: 56,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,685.48 : 74,155.68 = 40,860.75 : x
  2. Step 2: Convert to fraction form
    53,685.48/74,155.68 = 40,860.75/x
  3. Step 3: Cross multiply
    53,685.48x = 74,155.68 × 40,860.75
  4. Step 4: Simplify right side
    53,685.48x = 3,030,056,701.56
  5. Step 5: Solve for x
    x = 3,030,056,701.56/53,685.48
  6. Step 6: Final answer
    x = 56,440.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.