Home / 74,975.32-103,468.16-40,985.68

Finding the Fourth Proportional to 74,975.32, 103,468.16 and 40,985.68

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Solution

The fourth proportional to 74,975.32, 103,468.16 and 40,985.68 is: 56,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,975.32 : 103,468.16 = 40,985.68 : x
  2. Step 2: Convert to fraction form
    74,975.32/103,468.16 = 40,985.68/x
  3. Step 3: Cross multiply
    74,975.32x = 103,468.16 × 40,985.68
  4. Step 4: Simplify right side
    74,975.32x = 4,240,712,895.95
  5. Step 5: Solve for x
    x = 4,240,712,895.95/74,975.32
  6. Step 6: Final answer
    x = 56,561.45

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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.