Home / 98,577.74-136,037.12-56,136.28

Finding the Fourth Proportional to 98,577.74, 136,037.12 and 56,136.28

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Solution

The fourth proportional to 98,577.74, 136,037.12 and 56,136.28 is: 77,467.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,577.74 : 136,037.12 = 56,136.28 : x
  2. Step 2: Convert to fraction form
    98,577.74/136,037.12 = 56,136.28/x
  3. Step 3: Cross multiply
    98,577.74x = 136,037.12 × 56,136.28
  4. Step 4: Simplify right side
    98,577.74x = 7,636,617,858.71
  5. Step 5: Solve for x
    x = 7,636,617,858.71/98,577.74
  6. Step 6: Final answer
    x = 77,467.97

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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.