Home / 53,740-78,972

Finding the Third Proportional to 53,740 and 78,972

Calculator

Solution

The third proportional to 53,740 and 78,972 is: 116,050.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,740 : 78,972 = 78,972 : x
  2. Step 2: Convert to fraction form
    53,740/78,972 = 78,972/x
  3. Step 3: Cross multiply
    53,740x = 78,972 × 78,972
  4. Step 4: Simplify right side
    53,740x = 6,236,576,784
  5. Step 5: Solve for x
    x = 6,236,576,784/53,740
  6. Step 6: Final answer
    x = 116,050.93

Related Problems

Find third proportional to 26,870 and 39,486
Half scale
Find third proportional to 107,480 and 157,944
Double scale
Find third proportional to 53,742 and 78,975
Similar ratio
Find third proportional to 80,610 and 118,458
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.