Home / 85,386.40-128,079.54-23,056.84

Finding the Fourth Proportional to 85,386.40, 128,079.54 and 23,056.84

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Solution

The fourth proportional to 85,386.40, 128,079.54 and 23,056.84 is: 34,585.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,386.40 : 128,079.54 = 23,056.84 : x
  2. Step 2: Convert to fraction form
    85,386.40/128,079.54 = 23,056.84/x
  3. Step 3: Cross multiply
    85,386.40x = 128,079.54 × 23,056.84
  4. Step 4: Simplify right side
    85,386.40x = 2,953,109,461.05
  5. Step 5: Solve for x
    x = 2,953,109,461.05/85,386.40
  6. Step 6: Final answer
    x = 34,585.24

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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.