Home / 99,070.51-136,717.28-56,629.95

Finding the Fourth Proportional to 99,070.51, 136,717.28 and 56,629.95

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Solution

The fourth proportional to 99,070.51, 136,717.28 and 56,629.95 is: 78,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,070.51 : 136,717.28 = 56,629.95 : x
  2. Step 2: Convert to fraction form
    99,070.51/136,717.28 = 56,629.95/x
  3. Step 3: Cross multiply
    99,070.51x = 136,717.28 × 56,629.95
  4. Step 4: Simplify right side
    99,070.51x = 7,742,292,105.59
  5. Step 5: Solve for x
    x = 7,742,292,105.59/99,070.51
  6. Step 6: Final answer
    x = 78,149.32

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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.