Home / 53,342.80-73,615.18-30,681.77

Finding the Fourth Proportional to 53,342.80, 73,615.18 and 30,681.77

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Solution

The fourth proportional to 53,342.80, 73,615.18 and 30,681.77 is: 42,342.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,342.80 : 73,615.18 = 30,681.77 : x
  2. Step 2: Convert to fraction form
    53,342.80/73,615.18 = 30,681.77/x
  3. Step 3: Cross multiply
    53,342.80x = 73,615.18 × 30,681.77
  4. Step 4: Simplify right side
    53,342.80x = 2,258,643,576.49
  5. Step 5: Solve for x
    x = 2,258,643,576.49/53,342.80
  6. Step 6: Final answer
    x = 42,342.05

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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.