Home / 70,307.28-97,052.22-42,007.68

Finding the Fourth Proportional to 70,307.28, 97,052.22 and 42,007.68

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Solution

The fourth proportional to 70,307.28, 97,052.22 and 42,007.68 is: 57,987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,307.28 : 97,052.22 = 42,007.68 : x
  2. Step 2: Convert to fraction form
    70,307.28/97,052.22 = 42,007.68/x
  3. Step 3: Cross multiply
    70,307.28x = 97,052.22 × 42,007.68
  4. Step 4: Simplify right side
    70,307.28x = 4,076,938,601.05
  5. Step 5: Solve for x
    x = 4,076,938,601.05/70,307.28
  6. Step 6: Final answer
    x = 57,987.43

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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.