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Finding the Fourth Proportional to 101,478.67, 140,068.71 and 59,045.40

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Solution

The fourth proportional to 101,478.67, 140,068.71 and 59,045.40 is: 81,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,478.67 : 140,068.71 = 59,045.40 : x
  2. Step 2: Convert to fraction form
    101,478.67/140,068.71 = 59,045.40/x
  3. Step 3: Cross multiply
    101,478.67x = 140,068.71 × 59,045.40
  4. Step 4: Simplify right side
    101,478.67x = 8,270,413,009.43
  5. Step 5: Solve for x
    x = 8,270,413,009.43/101,478.67
  6. Step 6: Final answer
    x = 81,499.03

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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.