Home / 70,638.12-97,407.28-49,152.21

Finding the Fourth Proportional to 70,638.12, 97,407.28 and 49,152.21

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Solution

The fourth proportional to 70,638.12, 97,407.28 and 49,152.21 is: 67,779.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,638.12 : 97,407.28 = 49,152.21 : x
  2. Step 2: Convert to fraction form
    70,638.12/97,407.28 = 49,152.21/x
  3. Step 3: Cross multiply
    70,638.12x = 97,407.28 × 49,152.21
  4. Step 4: Simplify right side
    70,638.12x = 4,787,782,959.21
  5. Step 5: Solve for x
    x = 4,787,782,959.21/70,638.12
  6. Step 6: Final answer
    x = 67,779.03

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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.