Home / 78,595.10-108,221.04-59,242.13

Finding the Fourth Proportional to 78,595.10, 108,221.04 and 59,242.13

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Solution

The fourth proportional to 78,595.10, 108,221.04 and 59,242.13 is: 81,573.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,595.10 : 108,221.04 = 59,242.13 : x
  2. Step 2: Convert to fraction form
    78,595.10/108,221.04 = 59,242.13/x
  3. Step 3: Cross multiply
    78,595.10x = 108,221.04 × 59,242.13
  4. Step 4: Simplify right side
    78,595.10x = 6,411,244,920.42
  5. Step 5: Solve for x
    x = 6,411,244,920.42/78,595.10
  6. Step 6: Final answer
    x = 81,573.09

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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.