Home / 70,258.32-105,387.60-28,705.32

Finding the Fourth Proportional to 70,258.32, 105,387.60 and 28,705.32

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Solution

The fourth proportional to 70,258.32, 105,387.60 and 28,705.32 is: 43,058.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,258.32 : 105,387.60 = 28,705.32 : x
  2. Step 2: Convert to fraction form
    70,258.32/105,387.60 = 28,705.32/x
  3. Step 3: Cross multiply
    70,258.32x = 105,387.60 × 28,705.32
  4. Step 4: Simplify right side
    70,258.32x = 3,025,184,782.03
  5. Step 5: Solve for x
    x = 3,025,184,782.03/70,258.32
  6. Step 6: Final answer
    x = 43,058.03

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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.