Home / 70,272.40-96,985.20-40,068.64

Finding the Fourth Proportional to 70,272.40, 96,985.20 and 40,068.64

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Solution

The fourth proportional to 70,272.40, 96,985.20 and 40,068.64 is: 55,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,272.40 : 96,985.20 = 40,068.64 : x
  2. Step 2: Convert to fraction form
    70,272.40/96,985.20 = 40,068.64/x
  3. Step 3: Cross multiply
    70,272.40x = 96,985.20 × 40,068.64
  4. Step 4: Simplify right side
    70,272.40x = 3,886,065,064.13
  5. Step 5: Solve for x
    x = 3,886,065,064.13/70,272.40
  6. Step 6: Final answer
    x = 55,300.02

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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.