Home / 42,629.60-63,944.40-40,210.40

Finding the Fourth Proportional to 42,629.60, 63,944.40 and 40,210.40

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Solution

The fourth proportional to 42,629.60, 63,944.40 and 40,210.40 is: 60,315.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,629.60 : 63,944.40 = 40,210.40 : x
  2. Step 2: Convert to fraction form
    42,629.60/63,944.40 = 40,210.40/x
  3. Step 3: Cross multiply
    42,629.60x = 63,944.40 × 40,210.40
  4. Step 4: Simplify right side
    42,629.60x = 2,571,229,901.76
  5. Step 5: Solve for x
    x = 2,571,229,901.76/42,629.60
  6. Step 6: Final answer
    x = 60,315.60

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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.