Home / 52,430.07-78,665.90-19,152.30

Finding the Fourth Proportional to 52,430.07, 78,665.90 and 19,152.30

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Solution

The fourth proportional to 52,430.07, 78,665.90 and 19,152.30 is: 28,736.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,430.07 : 78,665.90 = 19,152.30 : x
  2. Step 2: Convert to fraction form
    52,430.07/78,665.90 = 19,152.30/x
  3. Step 3: Cross multiply
    52,430.07x = 78,665.90 × 19,152.30
  4. Step 4: Simplify right side
    52,430.07x = 1,506,632,820.81
  5. Step 5: Solve for x
    x = 1,506,632,820.81/52,430.07
  6. Step 6: Final answer
    x = 28,736.04

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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.