Home / 53,563-78,687

Finding the Third Proportional to 53,563 and 78,687

Calculator

Solution

The third proportional to 53,563 and 78,687 is: 115,595.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,563 : 78,687 = 78,687 : x
  2. Step 2: Convert to fraction form
    53,563/78,687 = 78,687/x
  3. Step 3: Cross multiply
    53,563x = 78,687 × 78,687
  4. Step 4: Simplify right side
    53,563x = 6,191,643,969
  5. Step 5: Solve for x
    x = 6,191,643,969/53,563
  6. Step 6: Final answer
    x = 115,595.54

Related Problems

Find third proportional to 26,781.50 and 39,343.50
Half scale
Find third proportional to 107,126 and 157,374
Double scale
Find third proportional to 53,565 and 78,690
Similar ratio
Find third proportional to 80,344.50 and 118,030.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.