Home / 98,872.32-136,450.80-56,437.23

Finding the Fourth Proportional to 98,872.32, 136,450.80 and 56,437.23

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Solution

The fourth proportional to 98,872.32, 136,450.80 and 56,437.23 is: 77,887.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,872.32 : 136,450.80 = 56,437.23 : x
  2. Step 2: Convert to fraction form
    98,872.32/136,450.80 = 56,437.23/x
  3. Step 3: Cross multiply
    98,872.32x = 136,450.80 × 56,437.23
  4. Step 4: Simplify right side
    98,872.32x = 7,700,905,183.28
  5. Step 5: Solve for x
    x = 7,700,905,183.28/98,872.32
  6. Step 6: Final answer
    x = 77,887.37

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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.