Home / 53,628.65-74,018.31-30,971.33

Finding the Fourth Proportional to 53,628.65, 74,018.31 and 30,971.33

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Solution

The fourth proportional to 53,628.65, 74,018.31 and 30,971.33 is: 42,746.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,628.65 : 74,018.31 = 30,971.33 : x
  2. Step 2: Convert to fraction form
    53,628.65/74,018.31 = 30,971.33/x
  3. Step 3: Cross multiply
    53,628.65x = 74,018.31 × 30,971.33
  4. Step 4: Simplify right side
    53,628.65x = 2,292,445,690.10
  5. Step 5: Solve for x
    x = 2,292,445,690.10/53,628.65
  6. Step 6: Final answer
    x = 42,746.66

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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.