Home / 88,362.12-121,938.48-48,075.40

Finding the Fourth Proportional to 88,362.12, 121,938.48 and 48,075.40

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Solution

The fourth proportional to 88,362.12, 121,938.48 and 48,075.40 is: 66,343.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,362.12 : 121,938.48 = 48,075.40 : x
  2. Step 2: Convert to fraction form
    88,362.12/121,938.48 = 48,075.40/x
  3. Step 3: Cross multiply
    88,362.12x = 121,938.48 × 48,075.40
  4. Step 4: Simplify right side
    88,362.12x = 5,862,241,201.39
  5. Step 5: Solve for x
    x = 5,862,241,201.39/88,362.12
  6. Step 6: Final answer
    x = 66,343.37

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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.