Home / 98,824.88-136,377-56,384.12

Finding the Fourth Proportional to 98,824.88, 136,377 and 56,384.12

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Solution

The fourth proportional to 98,824.88, 136,377 and 56,384.12 is: 77,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,824.88 : 136,377 = 56,384.12 : x
  2. Step 2: Convert to fraction form
    98,824.88/136,377 = 56,384.12/x
  3. Step 3: Cross multiply
    98,824.88x = 136,377 × 56,384.12
  4. Step 4: Simplify right side
    98,824.88x = 7,689,497,133.24
  5. Step 5: Solve for x
    x = 7,689,497,133.24/98,824.88
  6. Step 6: Final answer
    x = 77,809.32

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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.