Home / 90,746.81-125,212.16-53,013.77

Finding the Fourth Proportional to 90,746.81, 125,212.16 and 53,013.77

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Solution

The fourth proportional to 90,746.81, 125,212.16 and 53,013.77 is: 73,148.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,746.81 : 125,212.16 = 53,013.77 : x
  2. Step 2: Convert to fraction form
    90,746.81/125,212.16 = 53,013.77/x
  3. Step 3: Cross multiply
    90,746.81x = 125,212.16 × 53,013.77
  4. Step 4: Simplify right side
    90,746.81x = 6,637,968,386.37
  5. Step 5: Solve for x
    x = 6,637,968,386.37/90,746.81
  6. Step 6: Final answer
    x = 73,148.23

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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.