Home / 88,130.48-121,615.12-51,347.87

Finding the Fourth Proportional to 88,130.48, 121,615.12 and 51,347.87

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Solution

The fourth proportional to 88,130.48, 121,615.12 and 51,347.87 is: 70,857.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,130.48 : 121,615.12 = 51,347.87 : x
  2. Step 2: Convert to fraction form
    88,130.48/121,615.12 = 51,347.87/x
  3. Step 3: Cross multiply
    88,130.48x = 121,615.12 × 51,347.87
  4. Step 4: Simplify right side
    88,130.48x = 6,244,677,968.05
  5. Step 5: Solve for x
    x = 6,244,677,968.05/88,130.48
  6. Step 6: Final answer
    x = 70,857.19

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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.