Home / 78,779.33-118,113.63-28,852.94

Finding the Fourth Proportional to 78,779.33, 118,113.63 and 28,852.94

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Solution

The fourth proportional to 78,779.33, 118,113.63 and 28,852.94 is: 43,259.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,779.33 : 118,113.63 = 28,852.94 : x
  2. Step 2: Convert to fraction form
    78,779.33/118,113.63 = 28,852.94/x
  3. Step 3: Cross multiply
    78,779.33x = 118,113.63 × 28,852.94
  4. Step 4: Simplify right side
    78,779.33x = 3,407,925,256.81
  5. Step 5: Solve for x
    x = 3,407,925,256.81/78,779.33
  6. Step 6: Final answer
    x = 43,259.13

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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.