Home / 85,588.34-128,356.59-23,250.74

Finding the Fourth Proportional to 85,588.34, 128,356.59 and 23,250.74

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Solution

The fourth proportional to 85,588.34, 128,356.59 and 23,250.74 is: 34,869.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,588.34 : 128,356.59 = 23,250.74 : x
  2. Step 2: Convert to fraction form
    85,588.34/128,356.59 = 23,250.74/x
  3. Step 3: Cross multiply
    85,588.34x = 128,356.59 × 23,250.74
  4. Step 4: Simplify right side
    85,588.34x = 2,984,385,701.38
  5. Step 5: Solve for x
    x = 2,984,385,701.38/85,588.34
  6. Step 6: Final answer
    x = 34,869.07

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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.