Home / 70,782.12-97,683.35-40,572.45

Finding the Fourth Proportional to 70,782.12, 97,683.35 and 40,572.45

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Solution

The fourth proportional to 70,782.12, 97,683.35 and 40,572.45 is: 55,992.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,782.12 : 97,683.35 = 40,572.45 : x
  2. Step 2: Convert to fraction form
    70,782.12/97,683.35 = 40,572.45/x
  3. Step 3: Cross multiply
    70,782.12x = 97,683.35 × 40,572.45
  4. Step 4: Simplify right side
    70,782.12x = 3,963,252,630.85
  5. Step 5: Solve for x
    x = 3,963,252,630.85/70,782.12
  6. Step 6: Final answer
    x = 55,992.28

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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.