Home / 91,036.22-136,554.12-31,888.80

Finding the Fourth Proportional to 91,036.22, 136,554.12 and 31,888.80

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Solution

The fourth proportional to 91,036.22, 136,554.12 and 31,888.80 is: 47,833.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,036.22 : 136,554.12 = 31,888.80 : x
  2. Step 2: Convert to fraction form
    91,036.22/136,554.12 = 31,888.80/x
  3. Step 3: Cross multiply
    91,036.22x = 136,554.12 × 31,888.80
  4. Step 4: Simplify right side
    91,036.22x = 4,354,547,021.86
  5. Step 5: Solve for x
    x = 4,354,547,021.86/91,036.22
  6. Step 6: Final answer
    x = 47,833.13

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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.