Home / 70,321.57-97,019.63-40,085.08

Finding the Fourth Proportional to 70,321.57, 97,019.63 and 40,085.08

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Solution

The fourth proportional to 70,321.57, 97,019.63 and 40,085.08 is: 55,303.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,321.57 : 97,019.63 = 40,085.08 : x
  2. Step 2: Convert to fraction form
    70,321.57/97,019.63 = 40,085.08/x
  3. Step 3: Cross multiply
    70,321.57x = 97,019.63 × 40,085.08
  4. Step 4: Simplify right side
    70,321.57x = 3,889,039,630.12
  5. Step 5: Solve for x
    x = 3,889,039,630.12/70,321.57
  6. Step 6: Final answer
    x = 55,303.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.