Home / 86,730.45-119,707.98-56,463.03

Finding the Fourth Proportional to 86,730.45, 119,707.98 and 56,463.03

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Solution

The fourth proportional to 86,730.45, 119,707.98 and 56,463.03 is: 77,931.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,730.45 : 119,707.98 = 56,463.03 : x
  2. Step 2: Convert to fraction form
    86,730.45/119,707.98 = 56,463.03/x
  3. Step 3: Cross multiply
    86,730.45x = 119,707.98 × 56,463.03
  4. Step 4: Simplify right side
    86,730.45x = 6,759,075,265.98
  5. Step 5: Solve for x
    x = 6,759,075,265.98/86,730.45
  6. Step 6: Final answer
    x = 77,931.98

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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.