Home / 99,352.32-137,072.70-56,327.16

Finding the Fourth Proportional to 99,352.32, 137,072.70 and 56,327.16

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Solution

The fourth proportional to 99,352.32, 137,072.70 and 56,327.16 is: 77,712.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,352.32 : 137,072.70 = 56,327.16 : x
  2. Step 2: Convert to fraction form
    99,352.32/137,072.70 = 56,327.16/x
  3. Step 3: Cross multiply
    99,352.32x = 137,072.70 × 56,327.16
  4. Step 4: Simplify right side
    99,352.32x = 7,720,915,904.53
  5. Step 5: Solve for x
    x = 7,720,915,904.53/99,352.32
  6. Step 6: Final answer
    x = 77,712.49

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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.