Home / 70,772.50-97,666.78-40,557.16

Finding the Fourth Proportional to 70,772.50, 97,666.78 and 40,557.16

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Solution

The fourth proportional to 70,772.50, 97,666.78 and 40,557.16 is: 55,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,772.50 : 97,666.78 = 40,557.16 : x
  2. Step 2: Convert to fraction form
    70,772.50/97,666.78 = 40,557.16/x
  3. Step 3: Cross multiply
    70,772.50x = 97,666.78 × 40,557.16
  4. Step 4: Simplify right side
    70,772.50x = 3,961,087,223.14
  5. Step 5: Solve for x
    x = 3,961,087,223.14/70,772.50
  6. Step 6: Final answer
    x = 55,969.30

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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.