Home / 72,389.10-99,902.62-46,570.70

Finding the Fourth Proportional to 72,389.10, 99,902.62 and 46,570.70

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Solution

The fourth proportional to 72,389.10, 99,902.62 and 46,570.70 is: 64,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,389.10 : 99,902.62 = 46,570.70 : x
  2. Step 2: Convert to fraction form
    72,389.10/99,902.62 = 46,570.70/x
  3. Step 3: Cross multiply
    72,389.10x = 99,902.62 × 46,570.70
  4. Step 4: Simplify right side
    72,389.10x = 4,652,534,945.23
  5. Step 5: Solve for x
    x = 4,652,534,945.23/72,389.10
  6. Step 6: Final answer
    x = 64,271.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.