Home / 55,329.12-76,360.65-31,459.38

Finding the Fourth Proportional to 55,329.12, 76,360.65 and 31,459.38

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Solution

The fourth proportional to 55,329.12, 76,360.65 and 31,459.38 is: 43,417.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,329.12 : 76,360.65 = 31,459.38 : x
  2. Step 2: Convert to fraction form
    55,329.12/76,360.65 = 31,459.38/x
  3. Step 3: Cross multiply
    55,329.12x = 76,360.65 × 31,459.38
  4. Step 4: Simplify right side
    55,329.12x = 2,402,258,705.40
  5. Step 5: Solve for x
    x = 2,402,258,705.40/55,329.12
  6. Step 6: Final answer
    x = 43,417.62

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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.