Home / 92,880.09-128,176.13-50,438.63

Finding the Fourth Proportional to 92,880.09, 128,176.13 and 50,438.63

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Solution

The fourth proportional to 92,880.09, 128,176.13 and 50,438.63 is: 69,606.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,880.09 : 128,176.13 = 50,438.63 : x
  2. Step 2: Convert to fraction form
    92,880.09/128,176.13 = 50,438.63/x
  3. Step 3: Cross multiply
    92,880.09x = 128,176.13 × 50,438.63
  4. Step 4: Simplify right side
    92,880.09x = 6,465,027,502.83
  5. Step 5: Solve for x
    x = 6,465,027,502.83/92,880.09
  6. Step 6: Final answer
    x = 69,606.17

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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.