Home / 74,064.12-102,205.98-40,529.40

Finding the Fourth Proportional to 74,064.12, 102,205.98 and 40,529.40

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Solution

The fourth proportional to 74,064.12, 102,205.98 and 40,529.40 is: 55,929.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,064.12 : 102,205.98 = 40,529.40 : x
  2. Step 2: Convert to fraction form
    74,064.12/102,205.98 = 40,529.40/x
  3. Step 3: Cross multiply
    74,064.12x = 102,205.98 × 40,529.40
  4. Step 4: Simplify right side
    74,064.12x = 4,142,347,045.81
  5. Step 5: Solve for x
    x = 4,142,347,045.81/74,064.12
  6. Step 6: Final answer
    x = 55,929.20

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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.