Home / 74,666.88-103,043.52-42,400.85

Finding the Fourth Proportional to 74,666.88, 103,043.52 and 42,400.85

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Solution

The fourth proportional to 74,666.88, 103,043.52 and 42,400.85 is: 58,515.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,666.88 : 103,043.52 = 42,400.85 : x
  2. Step 2: Convert to fraction form
    74,666.88/103,043.52 = 42,400.85/x
  3. Step 3: Cross multiply
    74,666.88x = 103,043.52 × 42,400.85
  4. Step 4: Simplify right side
    74,666.88x = 4,369,132,319.77
  5. Step 5: Solve for x
    x = 4,369,132,319.77/74,666.88
  6. Step 6: Final answer
    x = 58,515.00

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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.