Home / 85,563.59-128,312.51-29,393.19

Finding the Fourth Proportional to 85,563.59, 128,312.51 and 29,393.19

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Solution

The fourth proportional to 85,563.59, 128,312.51 and 29,393.19 is: 44,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,563.59 : 128,312.51 = 29,393.19 : x
  2. Step 2: Convert to fraction form
    85,563.59/128,312.51 = 29,393.19/x
  3. Step 3: Cross multiply
    85,563.59x = 128,312.51 × 29,393.19
  4. Step 4: Simplify right side
    85,563.59x = 3,771,513,838.84
  5. Step 5: Solve for x
    x = 3,771,513,838.84/85,563.59
  6. Step 6: Final answer
    x = 44,078.49

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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.