Home / 88,008.61-121,420.05-57,810.19

Finding the Fourth Proportional to 88,008.61, 121,420.05 and 57,810.19

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Solution

The fourth proportional to 88,008.61, 121,420.05 and 57,810.19 is: 79,757.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,008.61 : 121,420.05 = 57,810.19 : x
  2. Step 2: Convert to fraction form
    88,008.61/121,420.05 = 57,810.19/x
  3. Step 3: Cross multiply
    88,008.61x = 121,420.05 × 57,810.19
  4. Step 4: Simplify right side
    88,008.61x = 7,019,315,856.76
  5. Step 5: Solve for x
    x = 7,019,315,856.76/88,008.61
  6. Step 6: Final answer
    x = 79,757.15

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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.