Home / 105,495.81-145,585.92-57,748.33

Finding the Fourth Proportional to 105,495.81, 145,585.92 and 57,748.33

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Solution

The fourth proportional to 105,495.81, 145,585.92 and 57,748.33 is: 79,693.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,495.81 : 145,585.92 = 57,748.33 : x
  2. Step 2: Convert to fraction form
    105,495.81/145,585.92 = 57,748.33/x
  3. Step 3: Cross multiply
    105,495.81x = 145,585.92 × 57,748.33
  4. Step 4: Simplify right side
    105,495.81x = 8,407,343,751.51
  5. Step 5: Solve for x
    x = 8,407,343,751.51/105,495.81
  6. Step 6: Final answer
    x = 79,693.63

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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.