Home / 72,075.81-108,114.10-47,272.93

Finding the Fourth Proportional to 72,075.81, 108,114.10 and 47,272.93

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Solution

The fourth proportional to 72,075.81, 108,114.10 and 47,272.93 is: 70,909.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,075.81 : 108,114.10 = 47,272.93 : x
  2. Step 2: Convert to fraction form
    72,075.81/108,114.10 = 47,272.93/x
  3. Step 3: Cross multiply
    72,075.81x = 108,114.10 × 47,272.93
  4. Step 4: Simplify right side
    72,075.81x = 5,110,870,281.31
  5. Step 5: Solve for x
    x = 5,110,870,281.31/72,075.81
  6. Step 6: Final answer
    x = 70,909.65

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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.