Home / 92,980.11-128,312.73-50,538.54

Finding the Fourth Proportional to 92,980.11, 128,312.73 and 50,538.54

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Solution

The fourth proportional to 92,980.11, 128,312.73 and 50,538.54 is: 69,743.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,980.11 : 128,312.73 = 50,538.54 : x
  2. Step 2: Convert to fraction form
    92,980.11/128,312.73 = 50,538.54/x
  3. Step 3: Cross multiply
    92,980.11x = 128,312.73 × 50,538.54
  4. Step 4: Simplify right side
    92,980.11x = 6,484,738,037.61
  5. Step 5: Solve for x
    x = 6,484,738,037.61/92,980.11
  6. Step 6: Final answer
    x = 69,743.28

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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.