Home / 90,279.36-124,576.81-53,973.63

Finding the Fourth Proportional to 90,279.36, 124,576.81 and 53,973.63

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Solution

The fourth proportional to 90,279.36, 124,576.81 and 53,973.63 is: 74,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,279.36 : 124,576.81 = 53,973.63 : x
  2. Step 2: Convert to fraction form
    90,279.36/124,576.81 = 53,973.63/x
  3. Step 3: Cross multiply
    90,279.36x = 124,576.81 × 53,973.63
  4. Step 4: Simplify right side
    90,279.36x = 6,723,862,649.52
  5. Step 5: Solve for x
    x = 6,723,862,649.52/90,279.36
  6. Step 6: Final answer
    x = 74,478.40

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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.