Home / 42,656.40-63,984.60-40,352.40

Finding the Fourth Proportional to 42,656.40, 63,984.60 and 40,352.40

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Solution

The fourth proportional to 42,656.40, 63,984.60 and 40,352.40 is: 60,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,656.40 : 63,984.60 = 40,352.40 : x
  2. Step 2: Convert to fraction form
    42,656.40/63,984.60 = 40,352.40/x
  3. Step 3: Cross multiply
    42,656.40x = 63,984.60 × 40,352.40
  4. Step 4: Simplify right side
    42,656.40x = 2,581,932,173.04
  5. Step 5: Solve for x
    x = 2,581,932,173.04/42,656.40
  6. Step 6: Final answer
    x = 60,528.60

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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.