Home / 78,297.08-117,463.56-33,931.28

Finding the Fourth Proportional to 78,297.08, 117,463.56 and 33,931.28

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Solution

The fourth proportional to 78,297.08, 117,463.56 and 33,931.28 is: 50,904.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,297.08 : 117,463.56 = 33,931.28 : x
  2. Step 2: Convert to fraction form
    78,297.08/117,463.56 = 33,931.28/x
  3. Step 3: Cross multiply
    78,297.08x = 117,463.56 × 33,931.28
  4. Step 4: Simplify right side
    78,297.08x = 3,985,688,944.16
  5. Step 5: Solve for x
    x = 3,985,688,944.16/78,297.08
  6. Step 6: Final answer
    x = 50,904.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.