Home / 85,657.14-118,210.08-47,931.66

Finding the Fourth Proportional to 85,657.14, 118,210.08 and 47,931.66

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Solution

The fourth proportional to 85,657.14, 118,210.08 and 47,931.66 is: 66,147.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,657.14 : 118,210.08 = 47,931.66 : x
  2. Step 2: Convert to fraction form
    85,657.14/118,210.08 = 47,931.66/x
  3. Step 3: Cross multiply
    85,657.14x = 118,210.08 × 47,931.66
  4. Step 4: Simplify right side
    85,657.14x = 5,666,005,363.13
  5. Step 5: Solve for x
    x = 5,666,005,363.13/85,657.14
  6. Step 6: Final answer
    x = 66,147.50

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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.