Home / 53,181.68-79,685.04-42,159.20

Finding the Fourth Proportional to 53,181.68, 79,685.04 and 42,159.20

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Solution

The fourth proportional to 53,181.68, 79,685.04 and 42,159.20 is: 63,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,181.68 : 79,685.04 = 42,159.20 : x
  2. Step 2: Convert to fraction form
    53,181.68/79,685.04 = 42,159.20/x
  3. Step 3: Cross multiply
    53,181.68x = 79,685.04 × 42,159.20
  4. Step 4: Simplify right side
    53,181.68x = 3,359,457,538.37
  5. Step 5: Solve for x
    x = 3,359,457,538.37/53,181.68
  6. Step 6: Final answer
    x = 63,169.45

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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.