Home / 70,478.21-97,264.35-38,647.10

Finding the Fourth Proportional to 70,478.21, 97,264.35 and 38,647.10

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Solution

The fourth proportional to 70,478.21, 97,264.35 and 38,647.10 is: 53,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,478.21 : 97,264.35 = 38,647.10 : x
  2. Step 2: Convert to fraction form
    70,478.21/97,264.35 = 38,647.10/x
  3. Step 3: Cross multiply
    70,478.21x = 97,264.35 × 38,647.10
  4. Step 4: Simplify right side
    70,478.21x = 3,758,985,304.05
  5. Step 5: Solve for x
    x = 3,758,985,304.05/70,478.21
  6. Step 6: Final answer
    x = 53,335.43

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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.