Home / 75,547.20-113,320.80-68,030.40

Finding the Fourth Proportional to 75,547.20, 113,320.80 and 68,030.40

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Solution

The fourth proportional to 75,547.20, 113,320.80 and 68,030.40 is: 102,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,547.20 : 113,320.80 = 68,030.40 : x
  2. Step 2: Convert to fraction form
    75,547.20/113,320.80 = 68,030.40/x
  3. Step 3: Cross multiply
    75,547.20x = 113,320.80 × 68,030.40
  4. Step 4: Simplify right side
    75,547.20x = 7,709,259,352.32
  5. Step 5: Solve for x
    x = 7,709,259,352.32/75,547.20
  6. Step 6: Final answer
    x = 102,045.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.