Home / 42,052.37-63,078.80-12,470.45

Finding the Fourth Proportional to 42,052.37, 63,078.80 and 12,470.45

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Solution

The fourth proportional to 42,052.37, 63,078.80 and 12,470.45 is: 18,705.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,052.37 : 63,078.80 = 12,470.45 : x
  2. Step 2: Convert to fraction form
    42,052.37/63,078.80 = 12,470.45/x
  3. Step 3: Cross multiply
    42,052.37x = 63,078.80 × 12,470.45
  4. Step 4: Simplify right side
    42,052.37x = 786,620,643.71
  5. Step 5: Solve for x
    x = 786,620,643.71/42,052.37
  6. Step 6: Final answer
    x = 18,705.74

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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.