Home / 74,329.02-102,574.80-40,337.80

Finding the Fourth Proportional to 74,329.02, 102,574.80 and 40,337.80

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Solution

The fourth proportional to 74,329.02, 102,574.80 and 40,337.80 is: 55,666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,329.02 : 102,574.80 = 40,337.80 : x
  2. Step 2: Convert to fraction form
    74,329.02/102,574.80 = 40,337.80/x
  3. Step 3: Cross multiply
    74,329.02x = 102,574.80 × 40,337.80
  4. Step 4: Simplify right side
    74,329.02x = 4,137,641,511.00
  5. Step 5: Solve for x
    x = 4,137,641,511.00/74,329.02
  6. Step 6: Final answer
    x = 55,666.57

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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.