Home / 70,211.02-96,877.80-39,995.68

Finding the Fourth Proportional to 70,211.02, 96,877.80 and 39,995.68

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Solution

The fourth proportional to 70,211.02, 96,877.80 and 39,995.68 is: 55,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,211.02 : 96,877.80 = 39,995.68 : x
  2. Step 2: Convert to fraction form
    70,211.02/96,877.80 = 39,995.68/x
  3. Step 3: Cross multiply
    70,211.02x = 96,877.80 × 39,995.68
  4. Step 4: Simplify right side
    70,211.02x = 3,874,693,487.90
  5. Step 5: Solve for x
    x = 3,874,693,487.90/70,211.02
  6. Step 6: Final answer
    x = 55,186.40

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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.